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Previous Updates: 2014 West Africa Outbreak

Previous Outbreak Updates (February 2016)

February 19, 2016

Outbreak Update
  • As of February 19, 2016, enhanced entry screening has been discontinued for travelers coming to the United States from Guinea. The United States is no longer conducting enhanced entry screening for Ebola.

February 10, 2016

Outbreak Update
  • According to the February 3 WHO Situation Report, a confirmed case of Ebola was reported on January 14 in Sierra Leone after a postmortem swab collected from a deceased woman tested positive for Ebola virus. The woman died on January 12 at her home in Magburaka, Tonkolili District, and received an unsafe burial. On January 20, one of her contacts developed symptoms and tested positive for Ebola virus. This second case in the cluster was transferred to an Ebola treatment center and was released on February 4 after a second blood sample tested negative for Ebola. All contacts of these two cases completed follow-up by February 11. If no additional cases are detected, transmission linked to this cluster of cases will be declared to have ended on March 17.

February 3, 2016

Outbreak Update
  • According to the February 3 WHO Situation Report, a confirmed case of Ebola was reported on January 14 in Sierra Leone after a postmortem swab collected from a deceased woman tested positive for Ebola virus. The woman died on January 12 at her home in Magburaka, Tonkolili District, and received an unsafe burial. On January 20, one of the contacts developed symptoms and tested positive for Ebola virus. This second case in the cluster was transferred to an Ebola treatment center where treatment is underway.

Previous Outbreak Updates (January 2016)

January 20, 2016

Outbreak Update
  • According to the January 20 WHO Situation Report, a new confirmed case of Ebola was reported on January 14 in Sierra Leone after a postmortem swab collected from a deceased woman tested positive for Ebola virus. The woman died on January 12 at her home in Magburaka, Tonkolili District, and received an unsafe burial. The origin of infection is under investigation.
  • As of December 29, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Guinea. These travelers will continue to enter the United States through one of the designated U.S. airports conducting enhanced entry screening. However, CDC no longer recommends active monitoring for travelers arriving in the United States from Guinea.
  • As of December 22, 2015, enhanced entry screening has been discontinued for travelers coming to the United States from Sierra Leone. These travelers will no longer be funneled through one of the U.S. airports conducting enhanced entry screening.

January 15, 2016

Outbreak Update
  • On January 15, 2016, a new confirmed case of Ebola was identified in Sierra Leone. The Sierra Leone government acted rapidly to respond to this new case. The origin of the case is being investigated, and contacts are being identified to prevent further transmission.
  • As of December 29, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Guinea. These travelers will continue to enter the United States through one of the designated U.S. airports conducting enhanced entry screening. However, CDC no longer recommends active monitoring for travelers arriving in the United States from Guinea.
  • As of December 22, 2015, enhanced entry screening has been discontinued for travelers coming to the United States from Sierra Leone. These travelers will no longer be funneled through one of the U.S. airports conducting enhanced entry screening.

January 14, 2016

Outbreak Update
  • On January 14, 2016, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the last confirmed patient with Ebola tested laboratory-negative twice. Liberia was first declared free of transmission in May 2015, but the country experienced two clusters of cases in June and November 2015. All three of the most affected countries—Guinea, Liberia, and Sierra Leone—have now been declared free of Ebola transmission, although the risk of additional small outbreaks continues.
  • As of December 29, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Guinea. These travelers will continue to enter the United States through one of the designated U.S. airports conducting enhanced entry screening. However, CDC no longer recommends active monitoring for travelers arriving in the United States from Guinea.
  • As of December 22, 2015, enhanced entry screening has been discontinued for travelers coming to the United States from Sierra Leone. These travelers will no longer be funneled through one of the U.S. airports conducting enhanced entry screening.

January 6, 2016

Outbreak Update
  • No new confirmed cases of Ebola were reported in the week up to January 3, according to WHO’s January 6 Situation Report.
  • On December 29, 2015, WHO declared Guinea free of Ebola virus transmission after 42 had passed since the last patient with Ebola tested laboratory-negative twice. The country has now entered a 90-day period of heightened surveillance.
  • As of December 29, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Guinea. These travelers will continue to enter the United States through one of the designated U.S. airports conducting enhanced entry screening. However, CDC no longer recommends active monitoring for travelers arriving in the United States from Guinea.
    • Travelers coming from Guinea will still undergo exit screening before leaving the country.
    • Upon entry to the United States, travelers will answer questions about travel history and possible exposures to Ebola. They will also provide contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Guinea will receive a modified CARE (Check and Report Ebola) Kit including information about Ebola, a thermometer, and contact information for state and local health departments. CDC recommends these travelers watch their health for 21 days after leaving Guinea, and to contact their state or local health department or seek health care if they develop fever or any other symptoms that might be consistent with Ebola.
  • As of December 22, 2015, enhanced entry screening has been discontinued for travelers coming to the United States from Sierra Leone. These travelers will no longer be funneled through one of the U.S. airports conducting enhanced entry screening.
    • CDC recommends travelers coming from Sierra Leone watch their health for fever or other symptoms of Ebola for 21 days after leaving the country. Travelers should contact their state or local health department or seek health care if symptoms develop during this time.

Previous Outbreak Updates (December 2015)

December 30, 2015

Outbreak Update
  • No new confirmed cases of Ebola were reported in the week up to December 27, according to WHO’s December 30 Situation Report. On December 29, 2015, WHO declared Guinea free of Ebola virus transmission after 42 had passed since the last patient with Ebola tested laboratory-negative twice. The country has now entered a 90-day period of heightened surveillance.
  • As of December 29, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Guinea. These travelers will continue to enter the United States through one of the designated U.S. airports conducting enhanced entry screening. However, CDC no longer recommends active monitoring for travelers arriving in the United States from Guinea.
    • Travelers coming from Guinea will still undergo exit screening before leaving the country.
    • Upon entry to the United States, travelers will answer questions about travel history and possible exposures to Ebola. They will also provide contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Guinea will receive a modified CARE (Check and Report Ebola) Kit including information about Ebola, a thermometer, and contact information for state and local health departments. CDC recommends these travelers watch their health for 21 days after leaving Guinea, and to contact their state or local health department or seek health care if they develop fever or any other symptoms that might be consistent with Ebola.
  • As of December 22, 2015, enhanced entry screening has been discontinued for travelers coming to the United States from Sierra Leone. These travelers will no longer be funneled through one of the U.S. airports conducting enhanced entry screening.
    • CDC recommends travelers coming from Sierra Leone watch their health for fever or other symptoms of Ebola for 21 days after leaving the country. Travelers should contact their state or local health department or seek health care if symptoms develop during this time.

December 29, 2015

Outbreak Update
  • As of December 29, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Guinea. These travelers will continue to enter the United States through one of the designated U.S. airports conducting enhanced entry screening. However, CDC no longer recommends active monitoring for travelers arriving in the United States from Guinea.
    • Travelers coming from Guinea will still undergo exit screening before leaving the country.
    • Upon entry to the United States, travelers will answer questions about travel history and possible exposures to Ebola. They will also provide contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Guinea will receive a modified CARE (Check and Report Ebola) Kit including information about Ebola, a thermometer, and contact information for state and local health departments. CDC recommends these travelers watch their health for 21 days after leaving Guinea, and to contact their state or local health department or seek health care if they develop fever or any other symptoms that might be consistent with Ebola.
  • On December 29, 2015, WHO declared Guinea free of Ebola virus transmission after 42 had passed since the last patient with Ebola tested laboratory-negative twice. 
  • According to WHO’s December 23 Situation Report, there were no confirmed cases of Ebola in the week up to December 20. All contacts associated with the recent cluster of cases in Liberia have completed the 21-day follow-up period.
  • As of December 22, 2015, enhanced entry screening has been discontinued for travelers coming to the United States from Sierra Leone. These travelers will no longer be funneled through one of the U.S. airports conducting enhanced entry screening.
    • CDC recommends travelers coming from Sierra Leone watch their health for fever or other symptoms of Ebola for 21 days after leaving the country. Travelers should contact their state or local health department or seek health care if symptoms develop during this time.

December 24, 2015

Outbreak Update
  • According to WHO’s December 23 Situation Report, there were no confirmed cases of Ebola in the week up to December 20. All contacts associated with the recent cluster of cases in Liberia have completed the 21-day follow-up period.
  • As of December 22, 2015, enhanced entry screening has been discontinued for travelers coming to the United States from Sierra Leone. These travelers will no longer be funneled through one of the U.S. airports conducting enhanced entry screening.
    • CDC recommends travelers coming from Sierra Leone watch their health for fever or other symptoms of Ebola for 21 days after leaving the country. Travelers should contact their state or local health department or seek health care if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea. This includes travelers from Sierra Leone or Liberia who have also been in Guinea within the past 21 days.

December 16, 2015

Outbreak Update
  • According to WHO’s December 16 Situation Report, no confirmed cases of Ebola were reported in the week up to December 13. All contacts associated with the cluster of 3 confirmed cases of Ebola reported from Liberia have now completed their 21-day monitoring period.
  • As of November 10, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Sierra Leone. These travelers will continue to enter through one of five U.S. airports conducting enhanced entry screening. However, because the Ebola outbreak in Sierra Leone is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Sierra Leone.
  • On November 7, 2015, WHO declared the end of Ebola virus transmission in Sierra Leone after 42 days had passed since the second negative test of the last confirmed patient with Ebola in the country. The country has now entered a 90-day period of enhanced surveillance.
  • On September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers are no longer funneled through one of the U.S. airports conducting enhanced entry screening.

December 9, 2015

Outbreak Update
  • According to WHO’s December 9 Situation Report, no new confirmed cases of Ebola were reported in the week up to December 6. Investigations into the origin of the cluster of cases in Liberia are ongoing. The two surviving patients from that cluster tested negative twice for Ebola on December 3. In addition to the family of the first-reported case, 165 contacts have been identified, including 15 high-risk contacts.
  • As of November 10, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Sierra Leone. These travelers will continue to enter through one of five U.S. airports conducting enhanced entry screening. However, because the Ebola outbreak in Sierra Leone is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Sierra Leone.
  • On November 7, 2015, WHO declared the end of Ebola virus transmission in Sierra Leone after 42 days had passed since the second negative test of the last confirmed patient with Ebola in the country. The country has now entered a 90-day period of enhanced surveillance.
  • On September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers are no longer funneled through one of the U.S. airports conducting enhanced entry screening.

December 2, 2015

Outbreak Update
  • According to WHO’s December 2 Situation Report, no new confirmed Ebola cases were reported in the week up to November 29. Investigations are ongoing into the origin of a cluster of 3 cases in Liberia. The first case was in a 15-year-old boy, and two members of the same family subsequently tested positive while in isolation. The 15-year-old boy died on November 23. In addition to the family of the first case, 165 contacts have been identified so far.
  • As of November 10, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Sierra Leone. These travelers will continue to enter through one of five U.S. airports conducting enhanced entry screening. However, because the Ebola outbreak in Sierra Leone is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Sierra Leone.
  • On November 7, 2015, WHO declared the end of Ebola virus transmission in Sierra Leone after 42 days had passed since the second negative test of the last confirmed patient with Ebola in the country. The country has now entered a 90-day period of enhanced surveillance.
  • On September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers are no longer funneled through one of the U.S. airports conducting enhanced entry screening.

Previous Outbreak Updates (November 2015)

November 25, 2015

Outbreak Update
  • According to the WHO’s November 25 Situation Report, Liberia reported a cluster of three confirmed cases of Ebola in the week up to November 22, 2015. The first reported case was in a 15-year-old boy who tested positive for Ebola after admission to a health facility in the Great Monrovia area on November 19. Two other members of the family subsequently tested positive while in isolation. In addition to the family, 149 contacts have been identified so far, including 10 health workers who had close contact with the 15-year-old prior to isolation. Investigations to establish the origin of infection are at an early stage.  The recent cases in Liberia underscore the importance of robust surveillance measures to ensure the rapid detection of any reintroduction or re-emergence of Ebola in currently unaffected areas.
  • As of November 10, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Sierra Leone. These travelers will continue to enter through one of five U.S. airports conducting enhanced entry screening. However, because the Ebola outbreak in Sierra Leone is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Sierra Leone.
  • On November 7, 2015, WHO declared the end of Ebola virus transmission in Sierra Leone after 42 days had passed since the second negative test of the last confirmed patient with Ebola in the country. The country has now entered a 90-day period of enhanced surveillance.
  • On September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers are no longer funneled through one of the U.S. airports conducting enhanced entry screening.

November 23, 2015

Outbreak Update
  • On November 19, 2015, Liberia identified a new “flare-up” of Ebola after stopping transmission in September. There are currently 3 confirmed cases from the same family being treated at an Ebola treatment unit in Monrovia, and 150 contacts are being monitored.
  • According to WHO’s Nov 18 Situation Report, Guinea reported no confirmed cases of Ebola in the week up to November 15. The most recent case from Guinea was reported on October 29. That case is a child who was born in an Ebola treatment center and who was delivered by medical staff wearing full personal protective equipment. All contacts associated with previous cases have completed their 21-day follow-up period. A second consecutive blood sample from the child tested negative for Ebola virus on November 16.
  • As of November 10, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Sierra Leone. These travelers will continue to enter through one of five U.S. airports conducting enhanced entry screening. However, because the Ebola outbreak in Sierra Leone is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Sierra Leone.
  • On November 7, 2015, WHO declared the end of Ebola virus transmission in Sierra Leone after 42 days had passed since the second negative test of the last confirmed patient with Ebola in the country. The country has now entered a 90-day period of enhanced surveillance.
  • On September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers are no longer funneled through one of the U.S. airports conducting enhanced entry screening.
  • WHO declared Liberia free of Ebola virus transmission on September 3, 2015.

November 18, 2015

Outbreak Update
  • According to WHO’s Nov 18 Situation Report, Guinea reported no confirmed cases of Ebola virus disease (EVD) in the week of November 15. The most recent case from Guinea was reported on October 29. That case is a child who was born in an Ebola treatment center and who was delivered by medical staff wearing full personal protective equipment (PPE). All contacts associated with previous cases have completed their 21-day follow-up period. A second consecutive blood sample from the child tested negative for Ebola virus on November 16.
  • On November 7, 2015, WHO declared the end of Ebola virus transmission in Sierra Leone after 42 days had passed since the second negative test of the last confirmed patient with Ebola in the country. The country has now entered a 90-day period of enhanced surveillance.
  • As of November 10, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Sierra Leone. These travelers will continue to enter through one of five U.S. airports conducting enhanced entry screening. However, because the Ebola outbreak in Sierra Leone is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Sierra Leone.
    • Travelers will still undergo exit screening before leaving Sierra Leone.
    • Upon entry to the United States, travelers will still have their temperatures taken and answer questions about travel history and possible exposures to Ebola. Travelers will also provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Sierra Leone will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Sierra Leone will be encouraged to watch their health for 21 days after leaving Sierra Leone, and to contact their state or local health department or seek health care if they develop fever or any other symptoms that might be consistent with Ebola.
    • Entry screening and monitoring will not change for travelers entering the United States from Guinea – this includes travelers from Sierra Leone who have also been in Guinea within the past 21 days.
  • On September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers are no longer funneled through one of the U.S. airports conducting enhanced entry screening.
    • Travelers still undergo exit screening before leaving Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea—this includes travelers from Liberia who have also been in Guinea within the past 21 days.
  • WHO declared Liberia free of Ebola virus transmission on September 3, 2015.

November 13, 2015

Outbreak Update
  • According to WHO’s Nov. 11 Situation Report, Guinea reported no new confirmed cases in the week up to Nov. 8. There are currently 69 contacts being followed in Guinea, all scheduled to complete their 21-day follow-up period on Nov. 14. However, one contact has been lost to follow-up.
  • On November 7, 2015, WHO declared the end of Ebola virus transmission in Sierra Leone after 42 days had passed since the second negative test of the last confirmed patient with Ebola in the country. The country has now entered a 90-day period of enhanced surveillance.
  • As of November 10, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Sierra Leone. These travelers will continue to enter through one of five U.S. airports conducting enhanced entry screening. However, because the Ebola outbreak in Sierra Leone is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Sierra Leone.
    • Travelers will still undergo exit screening before leaving Sierra Leone.
    • Upon entry to the United States, travelers will still have their temperatures taken and answer questions about travel history and possible exposures to Ebola. Travelers will also provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Sierra Leone will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Sierra Leone will be encouraged to watch their health for 21 days after leaving Sierra Leone, and to contact their state or local health department or seek health care if they develop fever or any other symptoms that might be consistent with Ebola.
    • Entry screening and monitoring will not change for travelers entering the United States from Guinea – this includes travelers from Sierra Leone who have also been in Guinea within the past 21 days.
  • On September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers are no longer funneled through one of the U.S. airports conducting enhanced entry screening.
    • Travelers still undergo exit screening before leaving Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea—this includes travelers from Liberia who have also been in Guinea within the past 21 days.
  • WHO declared Liberia free of Ebola virus transmission on September 3, 2015.

November 10, 2015

Outbreak Update
  • On November 7, 2015, WHO declared the end of Ebola virus transmission in Sierra Leone after 42 days had passed since the second negative test of the last confirmed patient with Ebola in the country. The country has now entered a 90-day period of enhanced surveillance.
  • As of November 10, 2015, enhanced entry screening and monitoring have changed for travelers entering the United States from Sierra Leone. These travelers will continue to enter through one of five U.S. airports conducting enhanced entry screening. However, because the Ebola outbreak in Sierra Leone is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Sierra Leone.
    • Travelers will still undergo exit screening before leaving Sierra Leone.
    • Upon entry to the United States, travelers will still have their temperatures taken and answer questions about travel history and possible exposures to Ebola. Travelers will also provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Sierra Leone will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Sierra Leone will be encouraged to watch their health for 21 days after leaving Sierra Leone, and to contact their state or local health department or seek health care if they develop fever or any other symptoms that might be consistent with Ebola.
    • Entry screening and monitoring will not change for travelers entering the United States from Guinea – this includes travelers from Sierra Leone who have also been in Guinea within the past 21 days.
  • On September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers are no longer funneled through one of the U.S. airports conducting enhanced entry screening.
    • Travelers still undergo exit screening before leaving Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea—this includes travelers from Liberia who have also been in Guinea within the past 21 days.
  • WHO declared Liberia free of Ebola virus transmission on September 3, 2015.

November 9, 2015

Outbreak Update
  • On November 7, 2015, WHO declared the end of Ebola virus transmission in Sierra Leone after 42 days had passed since the second negative test of the last confirmed patient with Ebola in the country. The country has now entered a 90-day period of enhanced surveillance.
  • According to WHO’s November 4 Situation Report, there was one new confirmed case of Ebola reported in Guinea in the week up to November 1. The patient is a newborn child of a woman confirmed to have Ebola the previous week. The child was delivered in an Ebola treatment center in Conakry and is currently undergoing treatment. As of November 1, there were 382 contacts under monitoring in Guinea.
  • As of September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers will no longer be funneled through one of the U.S. airports that are conducting enhanced entry screening.
    • Travelers still undergo exit screening before leaving Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea or Sierra Leone—this includes travelers from Liberia who have also been in either Guinea or Sierra Leone within the past 21 days.
  • WHO declared Liberia free of Ebola virus transmission on September 3, 2015.

November 4, 2015

Outbreak Update
  • According to WHO’s November 4 Situation Report, there was one new confirmed case of Ebola reported in Guinea in the week up to November 1. The patient is a newborn child of a woman confirmed to have Ebola the previous week. The child was delivered in an Ebola treatment center in Conakry and is currently undergoing treatment. As of November 1, there were 382 contacts under monitoring in Guinea.
  • In Sierra Leone, all contacts have completed their 21-day monitoring period. The last known patient with Ebola was confirmed free of Ebola on September 25. The country will be declared free of Ebola virus transmission on November 7 if no further cases are reported.
  • As of September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers will no longer be funneled through one of the U.S. airports that are conducting enhanced entry screening.
    • At this time, travelers will still undergo exit screening before departing from Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea or Sierra Leone—this includes travelers from Liberia who have also been in either Guinea or Sierra Leone within the past 21 days.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.

Previous Outbreak Updates (October 2015)

October 28, 2015

Outbreak Update
  • According to WHO’s October 28 Situation Report, there were 3 new confirmed cases of Ebola reported in the week up to October 25, all in Guinea. All 3 cases are from the same household in the subprefecture of Kaliah, Forecariah, and are registered high-risk contacts linked to a case from the same area last week.
  • In Sierra Leone, all contacts have completed their 21-day monitoring period. The last known patient with Ebola was confirmed free of Ebola on September 25. The country will be declared free of Ebola virus transmission on November 7 if no further cases are reported.
  • As of September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers will no longer be funneled through one of the U.S. airports that are conducting enhanced entry screening.
    • At this time, travelers will still undergo exit screening before departing from Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea or Sierra Leone—this includes travelers from Liberia who have also been in either Guinea or Sierra Leone within the past 21 days.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.

October 21, 2015

Outbreak Update
  • According to WHO’s October 21 Situation Report, 3 new confirmed cases of Ebola were reported in the week up to October 18, all in Guinea. Of the 3 cases, 1 was reported from Conakry and 2 were reported from the subprefecture of Kaliah, Forecariah. There are currently 246 contacts under follow-up in Guinea, and an additional 253 contacts remain untraced. In Sierra Leone, all registered contacts have completed their 21-day monitoring period, but 2 high-risk contacts remain untraced. The last known patient with Ebola was confirmed free of Ebola on September 25. The country will be declared free of Ebola virus transmission on November 7 if no further cases are reported.
  • As of September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers will no longer be funneled through one of the U.S. airports that are conducting enhanced entry screening.
    • At this time, travelers will still undergo exit screening before departing from Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea or Sierra Leone—this includes travelers from Liberia who have also been in either Guinea or Sierra Leone within the past 21 days.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.

October 14, 2015

Outbreak Update
  • According to WHO’s October 14 Situation Report, there were no new confirmed cases reported in the week up to October 11. This is the second consecutive week with no confirmed cases. There are 150 registered contacts being monitored in Guinea, and an additional 259 contacts who remain untraced. All registered contacts in Sierra Leone have completed the 21-day monitoring period, but 2 high-risk contacts remain untraced.
  • As of September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers will no longer be funneled through one of the U.S. airports that are conducting enhanced entry screening(http://www.cdc.gov/vhf/ebola/travelers/ebola-screening-factsheet.html).
    • At this time, travelers will still undergo exit screening before departing from Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea or Sierra Leone—this includes travelers from Liberia who have also been in either Guinea or Sierra Leone within the past 21 days.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.

October 7, 2015

Outbreak Update
  • According to WHO’s October 7 Situation Report, there were no confirmed cases of Ebola reported in the week up to October 4. This is the first time a complete epidemiologic week has passed with no confirmed cases since March 2014. All contacts in Sierra Leone have now completed their 21-day monitoring period. However, more than 500 contacts remain under follow-up in Guinea and several high-risk contacts in both Guinea and Sierra Leone have been lost to follow-up.
  • As of September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers will no longer be funneled through one of the U.S. airports that are conducting enhanced entry screening.
    • At this time, travelers will still undergo exit screening before departing from Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea or Sierra Leone—this includes travelers from Liberia who have also been in either Guinea or Sierra Leone within the past 21 days.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.

Previous Outbreak Updates (September 2015)

September 30, 2015

Outbreak Update
  • According to WHO’s September 30 Situation Report, there were 4 confirmed cases of Ebola reported in the week up to September 27, all in Guinea. All of these cases had symptom onset in Forecariah and are registered contacts. More than 1,100 contacts remain under monitoring in Guinea and Sierra Leone.
  • As of September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers will no longer be funneled through one of the U.S. airports that are conducting enhanced entry screening.
    • At this time, travelers will still undergo exit screening before departing from Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea or Sierra Leone—this includes travelers from Liberia who have also been in either Guinea or Sierra Leone within the past 21 days.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.

September 23, 2015

Outbreak Update
  • According to WHO’s September 23 Situation Report, there were two confirmed cases of Ebola reported in the week up to September 20, both of which were in Guinea. No confirmed cases were reported in Sierra Leone, but more than 700 contacts remain under monitoring.
  • As of September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers will no longer be funneled through one of the U.S. airports that are conducting enhanced entry screening.
    • At this time, travelers will still undergo exit screening before departing from Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea or Sierra Leone—this includes travelers from Liberia who have also been in either Guinea or Sierra Leone within the past 21 days.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.

September 21, 2015

Outbreak Update
  • As of September 21, 2015, enhanced entry screening was discontinued for travelers coming to the United States from Liberia. These travelers will no longer be funneled through one of the U.S. airports that are conducting enhanced entry screening.
    • At this time, travelers will still undergo exit screening before departing from Liberia.
    • CDC recommends that travelers from Liberia watch their health for fever or other symptoms of Ebola for 21 days after they leave Liberia. They should contact their state or local health department or seek healthcare if symptoms develop during this time.
    • Recommendations and procedures have not changed for travelers entering the United States from Guinea or Sierra Leone—this includes travelers from Liberia who have also been in either Guinea or Sierra Leone within the past 21 days.
  • According to WHO’s September 16 Situation Report, there were 5 confirmed cases of Ebola reported in the week up to September 13, all of which were in Sierra Leone. For the first time in over a year, Guinea reported no new confirmed cases. All but one of the cases in Sierra Leone were registered contacts associated with a chain of transmission in Kambia. The other case was reported in Bombali, which has not reported a case for over 5 months. A rapid response team has been deployed to coordinate case investigation and contact tracing. Overall, there are 1,800 contacts under observation in Guinea and Sierra Leone.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.

September 16, 2015

Outbreak Update
  • According to WHO’s September 16 Situation Report, there were 5 confirmed cases of Ebola reported in the week up to September 13, all of which were in Sierra Leone. For the first time in over a year, Guinea reported no new confirmed cases. All but one of the cases in Sierra Leone were registered contacts associated with a chain of transmission in Kambia. The other case was reported in Bombali, which has not reported a case for over 5 months. A rapid response team has been deployed to coordinate case investigation and contact tracing. Overall, there are 1,800 contacts under observation in Guinea and Sierra Leone.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

September 9, 2015

Outbreak Update
  • According to WHO’s September 9 Situation Report, there were two confirmed cases of Ebola reported in the week up to September 6, one in Guinea and one in Sierra Leone. Both cases were registered contacts associated with previous cases in Conakry, Guinea, and Kambia, Sierra Leone. The total number of contacts under observation in both countries has increased to approximately 1,300, largely due to the single high-risk community death reported in Sierra Leone the previous week.
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia has now entered a 90-day period of heightened surveillance.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

September 3, 2015

Outbreak Update
  • On September 3, 2015, WHO declared Liberia free of Ebola virus transmission after 42 days had passed since the second negative test on July 22 of the last laboratory-confirmed case in the country. Liberia now enters a 90-day period of heightened surveillance.
  • According to WHO’s September 2 Situation Report, there were 3 confirmed cases reported in the week up to August 30. Two of those cases were in Guinea and 1 was in Sierra Leone. The case in Sierra Leone is the first in the country in over 2 weeks and was reported in the western district of Kambia, which borders Guinea. There are 48 contacts being monitored in Sierra Leone, all associated with the most recent case.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

September 2, 2015

Outbreak Update
  • According to WHO’s September 2 Situation Report, there were 3 confirmed cases reported in the week up to August 30. Two of those cases were in Guinea and 1 was in Sierra Leone. The case in Sierra Leone is the first in the country in over 2 weeks and was reported in the western district of Kambia, which borders Guinea. There are 48 contacts being monitored in Sierra Leone, all associated with the most recent case.
  • Liberia has had no new confirmed cases of Ebola after the discharge of the country’s last two patients on July 23. All contacts have now completed their 21-day monitoring period and surveillance continues to be strengthened.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

Previous Outbreak Updates (August 2015)

August 26, 2015

Outbreak Update
  • According to WHO’s August 26 Situation Report, there were 3 confirmed cases of Ebola reported in the week up to August 23, all of which were reported from Guinea. All of these cases were identified in the capital, Conakry, and have generated a substantial number of high-risk contacts.
  • On August 24, 2015, Sierra Leone discharged the country’s last known patient with Ebola from the Makheni Ebola treatment unit. Sierra Leone will be considered free of Ebola virus transmission Leone after 42 days have passed with no new confirmed cases.
  • On June 29, 2015, a confirmed case of Ebola was reported in a 17-year-old male who had died in Liberia. Five contacts associated with this case were confirmed to have Ebola, one of whom died. The last two patients were discharged on July 23 after testing negative for Ebola twice. All contacts have now completed their 21-day monitoring period.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

August 25, 2015

Outbreak Update
  • On August 24, 2015, Sierra Leone discharged the country’s last known patient with Ebola from the Makheni Ebola treatment unit. Ebola virus transmission will be considered ended in Sierra Leone after 42 days have passed with no new confirmed cases.
  • On June 29, 2015, a confirmed case of Ebola was reported in a 17-year-old male who had died in Liberia. Five contacts associated with this case were confirmed to have Ebola, one of whom died. The last two patients were discharged on July 23 after testing negative for Ebola twice. All contacts have now completed their 21-day monitoring period.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

August 19, 2015

Outbreak Update
  • According to WHO’s August 19 Situation Report, there were three confirmed cases of Ebola reported in the week up to August 16, all of which were reported from Guinea. For the first time since the beginning of the outbreak in Sierra Leone, a full epidemiological week has passed with no confirmed cases reported. A total of 72 contacts remain under monitoring in Sierra Leone. All of the reported cases reported in Guinea are registered contacts and are now receiving treatment.
  • On June 29, 2015, a confirmed case of Ebola was reported in a 17-year-old male who had died in Liberia. Five contacts associated with this case were confirmed to have Ebola, one of whom died. The last two patients were discharged on July 23 after testing negative for Ebola twice. All contacts have now completed their 21-day monitoring period.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

August 17, 2015

Outbreak Update
  • On August 17, WHO announced that an epidemiological week had passed with no new Ebola cases in Sierra Leone for the first time since the beginning of the outbreak. Sierra Leone now only has one chain of transmission, which started in Freetown but sparked a cluster of cases in Tonkolili, in the northern region of the country. On August 14, 595 people in Tonkolili graduated from quarantine after being monitored for Ebola for 21 days.
  • On June 29, 2015, a confirmed case of Ebola was reported in a 17-year-old male who had died in Liberia. Five contacts associated with this case were confirmed to have Ebola, one of whom died. The last two patients were discharged on July 23 after testing negative for Ebola twice. All contacts have now completed their 21-day monitoring period.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

August 12, 2015

Outbreak Update
  • According to WHO’s August 12 Situation Report, there were three confirmed cases of Ebola reported in the week up to August 9, one in Sierra Leone and two in Guinea. Only one of the three confirmed cases was a registered contact, but was lost to follow-up and generated multiple high-risk contacts in several health facilities in Conakry, Guinea. The other Guinean case was detected by postmortem testing and was linked to an unsafe burial in Forecariah. In Sierra Leone, a new case in Freetown generated several high-risk contacts.
  • On June 29, 2015, a confirmed case of Ebola was reported in a 17-year-old male who had died in Liberia. Five contacts associated with this case were confirmed to have Ebola, one of whom died. The last two patients were discharged on July 23 after testing negative for Ebola twice. All contacts have now completed their 21-day monitoring period.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

August 11, 2015

Outbreak Update
  • According to WHO’s August 5 Situation Report there were two confirmed cases of Ebola reported in the week up to August 2 – one each in Guinea and Sierra Leone. This is the lowest weekly total since March 2014 and marks the third consecutive decline in weekly case incidence. In Sierra Leone, more than 600 contacts of a single case reported in Tonkolili are being monitored for Ebola. More than 40 of these contacts are considered at high risk because of the nature of their contact with the first case. No new cases were reported from Liberia. For the first time in three weeks, no health worker infections were reported from any of the affected countries.
  • On June 29, 2015, a confirmed case of Ebola was reported in a 17-year-old male who had died in Liberia. Five contacts associated with this case were confirmed to have Ebola, one of whom died. The last patient was discharged on July 23 after testing negative for Ebola twice. All contacts have now completed their 21-day monitoring period.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

August 5, 2015

Outbreak Update
  • According to WHO’s August 5 Situation Report there were two confirmed cases of Ebola reported in the week up to August 2 – one each in Guinea and Sierra Leone. This is the lowest weekly total since March 2014 and marks the third consecutive decline in weekly case incidence. In Sierra Leone, more than 600 contacts of a single case reported in Tonkolili are being monitored for Ebola. More than 40 of these contacts are considered at high risk because of the nature of their contact with the first case. No new cases were reported from Liberia, and the last case was discharged on July 23 after testing negative for Ebola twice. For the first time in three weeks, no health worker infections were reported from any of the affected countries.
  • On June 29, 2015, a confirmed case of Ebola was reported in a 17-year-old male in Liberia. Five contacts associated with this case were confirmed to have Ebola, one of whom died. Genetic sequencing show this virus appears to be related to the one previously circulating in Liberia, suggesting the virus was not imported from Sierra Leone or Guinea. A CDC field team continues to work with the Liberian Ministry of Health and other partners to determine the source, understand the chain of transmission, and prevent further spread. All contacts have now completed their 21-day monitoring period.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

Previous Outbreak Updates (July 2015)

July 29, 2015

Outbreak Update
  • According to WHO’s July 29 Situation Report, there were seven confirmed cases of Ebola reported in the week up to July 26. This is the lowest weekly total in over a year and comes after eight consecutive weeks during which case incidence had stayed at between 20 and 30 cases per week. Despite this decline, there have been several high-risk events in Guinea and Sierra Leone recently, and there are still more than 2,000 contacts still within their 21-day monitoring period in all three countries. No new cases have been reported in Liberia, and the remaining four patients have been discharged after treatment.
  • On June 29, 2015, a confirmed case of Ebola was reported in a 17-year-old male in Liberia. Five contacts associated with this case have been confirmed to have Ebola, one of whom died. Genetic sequencing show this virus appears to be related to the one previously circulating in Liberia, suggesting the virus was not imported from Sierra Leone or Guinea. A CDC field team continues to work with the Liberian Ministry of Health and other partners to determine the source, understand the chain of transmission, and prevent further spread. As of July 21, 56 contacts associated with the chain of transmission are being monitored.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

July 22, 2015

Outbreak Update
  • According to WHO’s July 22 Situation Report, there were 26 confirmed cases of Ebola reported in the week up to July 19. Of those cases, 22 were in Guinea and four were in Sierra Leone. All but two of these cases arose from registered contacts of previous cases. This is the highest proportion of cases to arise among contacts since the beginning of the outbreak. No new cases were reported from Liberia.
  • On June 29, 2015, a confirmed case of Ebola was reported in a 17-year-old male in Liberia. Five contacts associated with this case have been confirmed to have Ebola, one of whom died. Genetic sequencing show this virus appears to be related to the one previously circulating in Liberia, suggesting the virus was not imported from Sierra Leone or Guinea. A CDC field team continues to work with the Liberian Ministry of Health and other partners to determine the source, understand the chain of transmission, and prevent further spread. As of July 21, 56 contacts associated with the chain of transmission are being monitored.
  • On July 20, Italy was declared free of Ebola transmission after 42 days had passed since the country’s first and only case of Ebola to date was confirmed Ebola-negative.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

July 21, 2015

Outbreak Update
  • As of July 20, two incubation periods (42 days) have passed since the patient diagnosed with Ebola in Italy last tested negative for the disease on June 9. Italy is now considered free of Ebola virus transmission in accordance with WHO guidelines.
  • According to WHO’s July 15 Situation Report, there were 30 confirmed cases of Ebola reported in the week up to July 12. Only one of these cases came from an unknown source of infection; however, a substantial proportion continue to be identified only after postmortem testing.
  • On June 29, 2015, a new confirmed case of Ebola was reported in a 17-year-old male in Liberia. As of July 15, five contacts associated with this case have been confirmed to have Ebola. Genetic sequencing show this virus appears to be related to the one previously circulating in Liberia, suggesting the virus was not imported from Sierra Leone or Guinea.  A CDC field team continues to work with the Liberian Ministry of Health and other partners to determine the source, understand the chain of transmission, and prevent further spread.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

July 14, 2015

Outbreak Update
  • As of July 14, 2015, Liberia has reported six confirmed cases of Ebola. The initial case was in a 17-year-old male who died on June 28, 2015. All of the cases appear to be from the same cluster in Margibi County. A CDC field team continues to work with the Liberian Ministry of Health and other partners to determine the source, understand the chain of transmission, and prevent further spread. Genetic sequencing indicates that the virus is similar to strains circulating in Liberia last year. This finding rules out the likelihood that the infection was imported from Sierra Leone or Guinea. The initial case was confirmed June 29, as a result of the enhanced surveillance and response system, which includes testing and safely burying bodies, put into place after Liberia was declared free of Ebola transmission in May.
  • According to WHO’s July 8 Situation Report, there were 30 confirmed cases of Ebola reported in the week up to July 5. Although this is the highest weekly total since mid-May, improvements to case investigation and contact tracing, together with enhanced incentives to encourage case reporting and compliance with quarantine measures, have led to a better understanding of chains of transmission than a month ago. This has resulted in a decreasing proportion of cases from unknown sources of infection.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

July 13, 2015

Outbreak Update
  • As of July 13, 2015, Liberia has reported five confirmed cases of Ebola. The initial case was in a 17-year-old male who died on June 28, 2015. All of the cases appear to be from the same cluster in Margibi County. A CDC field team continues to work with the Liberian Ministry of Health and other partners to determine the source, understand the chain of transmission, and prevent further spread. Genetic sequencing indicates that the virus is similar to strains circulating in Liberia last year. This finding rules out the likelihood that the infection was imported from Sierra Leone or Guinea. The initial case was confirmed June 29, as a result of the enhanced surveillance and response system, which includes testing and safely burying bodies, put into place after Liberia was declared free of Ebola transmission in May.
  • According to WHO’s July 8 Situation Report, there were 30 confirmed cases of Ebola reported in the week up to July 5. Although this is the highest weekly total since mid-May, improvements to case investigation and contact tracing, together with enhanced incentives to encourage case reporting and compliance with quarantine measures, have led to a better understanding of chains of transmission than a month ago. This has resulted in a decreasing proportion of cases from unknown sources of infection.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

July 10, 2015

Outbreak Update
  • On June 29, routine surveillance detected a new confirmed case of Ebola in Liberia —the first since March 20. The case was in a 17-year-old male who first became ill on June 21, died on June 28, and postmortem testing confirmed Ebola. Four subsequent cases of Ebola have been confirmed. CDC is working closely with the Liberian government and other international partners to investigate the chain of transmission, identify any new cases, and prevent further spread.
  • According to WHO’s July 8 Situation Report, there were 30 confirmed cases of Ebola reported in the week up to July 5. Although this is the highest weekly total since mid-May, improvements to case investigation and contact tracing, together with enhanced incentives to encourage case reporting and compliance with quarantine measures, have led to a better understanding of chains of transmission than a month ago. This has resulted in a decreasing proportion of cases from unknown sources of infection.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

July 8, 2015

Outbreak Update
  • According to WHO’s July 8 Situation Report, there were 30 confirmed cases of Ebola reported in the week up to July 5. Although this is the highest weekly total since mid-May, improvements to case investigation and contact tracing, together with enhanced incentives to encourage case reporting and compliance with quarantine measures, have led to a better understanding of chains of transmission than a month ago. This has resulted in a decreasing proportion of cases from unknown sources of infection.
  • On June 29, routine surveillance detected a new confirmed case of Ebola in Liberia —the first since March 20. The case was in a 17-year-old male who first became ill on June 21, died on June 28, and postmortem testing confirmed Ebola. Two people who had contact with the initial case have since been confirmed as Ebola-positive. Both patients are being treated at an Ebola treatment center in Monrovia. A probable case with a strong epidemiologic link to the first case is also in isolation at a treatment center, but has indeterminate test results for Ebola. CDC is working closely with the Liberian government and other international partners to investigate the chain of transmission, identify any new cases, and prevent further spread.
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

July 1, 2015

Outbreak Update
  • On June 29, routine surveillance detected a new confirmed case of Ebola in Liberia —the first since March 20. The case is in a 17-year-old male who presented at a local health facility and was treated for malaria. He died on June 28 and post mortem testing confirmed Ebola. Close to 200 people had contact with the man and are now being closely monitored. Two of those people developed symptoms of Ebola and have tested positive for Ebola. Both patients are being treated at an Ebola treatment center that had been kept ready as part of Liberia’s 90-day heightened vigilance period following the declaration of the end of the outbreak on May 9. CDC is working with the Ministry of Health and others to understand the origin of the case, tracing contacts, and stopping spread to others. 
  • As of June 17, 2015, entry screening changed for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.

Previous Outbreak Updates (June 2015)

June 24, 2015

Outbreak Update
  • As of June 17, 2015, entry screening will change for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.
    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.
  • According to WHO’s June 24 Situation Report, there were 20 confirmed cases of Ebola reported in the week leading up to June 21, compared with 24 cases the previous week. Weekly case incidence has stalled at between 20 and 27 cases since the end of May, while cases continue to arise from unknown sources of infection, and to be detected only after post-mortem testing of community deaths.
  • After over 2 months with no new health worker infections in Guinea, 2 new health worker infections were reported from Boke. In Sierra Leone a new health worker infection was reported for the first time since 14 May. There have been a total of 872 confirmed health worker infections reported from Guinea, Liberia, and Sierra Leone since the start of the outbreak, with 507 reported deaths.

June 17, 2015

Outbreak Update
  • As of June 17, 2015, entry screening will change for travelers coming to the United States from Liberia. These travelers will continue to enter through one of five U.S. airports (New York’s JFK, Washington-Dulles, Newark International, Chicago O’Hare, and Atlanta Hartsfield-Jackson). However, because the Ebola outbreak in Liberia is now over, CDC no longer recommends active monitoring for those travelers arriving in the United States from Liberia.

    • Upon entry, travelers will still have their temperatures taken and be asked questions about travel history and possible exposures to Ebola. Travelers will also need to provide their contact information so that the health department at their destination can connect with them, if needed.
    • Travelers from Liberia will now receive a modified CARE Kit including information about Ebola, a thermometer, and contact information for state and local health departments. Travelers from Liberia will be encouraged to watch their health for 21 days after leaving Liberia, and to contact their state or local health department if they develop fever or any other symptoms that might be consistent with Ebola.
    • Travelers will still undergo exit screening before departing from Liberia. Entry screening and monitoring will not change for travelers entering the United States from Guinea or Sierra Leone – this includes travelers from Liberia who have also traveled to either Guinea or Sierra Leone within the past 21 days.
  • According to WHO’s June 17 Situation Report, 76 confirmed cases of Ebola were reported from Guinea and Sierra Leone in the 21 days leading up to June 14. Most of these cases came from well-characterized chains of transmission and arose among registered, monitored contacts of previous cases.
  • The last health worker infections in Guinea and Sierra Leone were reported on April 6 and May 14, respectively. There have been a total of 869 confirmed health worker infections reported from Guinea, Liberia, and Sierra Leone since the start of the outbreak, with 507 reported deaths.

June 3, 2015

Outbreak Update
  • According to WHO’s June 3 SitRep, the intensity and geographical area of Ebola transmission have increased in Guinea and Sierra Leone. In the week leading up to May 31, a total of 25 confirmed cases were reported from Guinea and Sierra Leone, an increase from the 10-month low of 9 cases reported in the week up to May 10. Several cases in both Guinea and Sierra Leone arose from unknown sources of infection in areas that have not reported confirmed cases for several weeks, indicating that chains of transmission continue to go undetected.
  • The last health worker infections in Guinea and Sierra Leone were reported on April 6 and May 14, respectively. There have been a total of 869 confirmed health worker infections reported from Guinea, Liberia, and Sierra Leone since the start of the outbreak, with 507 reported deaths.

Previous Outbreak Updates (May 2015)

May 27, 2015

Outbreak Update
  • On May 25, CDC and the New Jersey Department of Health confirmed a death from Lassa fever in a person returning to the United States from Liberia. Tests for Ebola and other viral hemorrhagic fevers were negative. CDC is working with public health officials to identify people who had contact with the patient. Those identified as close contacts of the patient will be monitored for 21 days to see if symptoms occur.
  • According to WHO’s May 27 SitRep, a total of 9 confirmed cases were reported in Guinea in the week leading up to May 24, compared with 27 cases the previous week. In Sierra Leone, a total of 3 confirmed cases were reported in the week leading up to May 24, compared with 8 the week before. The west-Guinean prefecture of Forecariah reported the most cases of any one district, and continues to present the greatest challenge in terms of response, with multiple chains of transmission over a wide geographical area and the continued occurrence of cases from unknown sources of infection.
  • The last health worker infection in Guinea was reported on April 6 and May 14 in Sierra Leone. There have been a total of 869 confirmed health worker infections reported from Guinea, Liberia, and Sierra Leone since the start of the outbreak, with 507 reported deaths.

May 26, 2015

Outbreak Update
  • On May 25, CDC and the New Jersey Department of Health confirmed a death from Lassa fever in a person returning to the United States from Liberia. Tests for Ebola and other viral hemorrhagic fevers were negative. CDC is working with public health officials to identify people who had contact with the patient. Those identified as close contacts of the patient will be monitored for 21 days to see if symptoms occur.

May 20, 2015

Outbreak Update
  • According to the WHO’s May 20 SitRep, a total of 35 new confirmed Ebola cases were reported from Guinea and Sierra Leone in the week leading up to May 17. This is a substantial increase compared with the nine total cases reported the previous week.  The geographical area of transmission has also expanded compared with recent weeks, with a total of six districts reporting cases (three in Guinea and three in Sierra Leone). In Sierra Leone, only one of the eight confirmed cases has an unknown source of infection. In Guinea, nine of the 27 reported cases originated from an unknown source, indicating that chains of transmission continue to evade detection in several areas.
  • On May 12, a laboratory-confirmed case of Ebola was reported in a volunteer health worker who returned to Italy from Sierra Leone on May 7.

May 13, 2015

Outbreak Update
  • According to the WHO’s May 13 SitRep, a total of 9 new confirmed Ebola cases were reported in the week leading up to May 10: seven cases in Guinea and two cases in Sierra Leone. This is the lowest weekly total this year.  In the previous week, both countries reported nine cases. As of May 12, Sierra Leone had reported eight consecutive days without a confirmed case. Of the seven cases reported for Guinea, six came from one prefecture,  which has been the focus of transmission for several weeks.  Four of the six cases were from one sub-prefecture that borders Sierra Leone. The seventh confirmed case was identified post mortem in a separate prefecture. Investigations have not been able to establish a link with a previously reported case. The absence of an established epidemiological link between this case and a known chain of transmission is of concern. Preliminary reports from that prefecture since May 10 indicate that the case has resulted in at least three additional confirmed cases.
  • In total, four of the seven cases reported from Guinea in the week leading up to May 10 were identified post mortem. One of the seven cases was a registered contact of a previous case. For the third consecutive week there was a decline in the number of reported unsafe burials, with 23 unsafe burials out of 368 reported community deaths. Based on the information above, tracking transmission chains is still a challenge and there remains a possibility of an increase in case reports and/or geographical spread in the coming weeks.
  • In Sierra Leone, the two reported cases were from one area of Freetown. The two patients were known contacts of a previous case and were under quarantine when symptoms developed. Following treatment, one of the two patients has tested negative for Ebola two times. 
  • On May 9, the Ebola virus outbreak in Liberia was declared over after 42 days had elapsed since the burial of the last confirmed case in the country. The country has now entered a three-month period of heightened vigilance. WHO will maintain an enhanced presence in the country until the end of 2015, with a particular focus on areas that border Guinea and Sierra Leone.
  • On May 12, WHO received notification of a laboratory-confirmed case in Italy. The patient is a volunteer health worker who returned from Sierra Leone on May 7. The patient developed symptoms on May 10 and was transported to a hospital infectious diseases ward on May 11. The patient was transferred to the National Institute for Infectious Diseases in Rome on May 12, following confirmation of Ebola. There have been a total of 868 confirmed healthcare worker infections reported in Guinea, Liberia, and Sierra Leone since the start of the outbreak, with 507 reported deaths.

May 6, 2015

Outbreak Update
  • Ebola virus has been found in the semen of some men who have recovered from Ebola infection. It is possible that Ebola could be transmitted through sex. Until more information is known, avoid contact with semen from a male survivor. If male survivors have sex (oral, vaginal, or anal sex), a condom should be used correctly and consistently every time. The risk of getting Ebola from semen is considered to be very low and likely decreases over time. CDC and other public health partners are continuing to study Ebola transmission and will share what is known as it becomes available.
  • According to the WHO’s May 6 SitRep, a total of 18 new confirmed Ebola cases were reported in Guinea and Sierra Leone in the week leading up to May 3, compared to 33 the previous week. This is the lowest weekly total this year. In the last month, between 30 and 37 confirmed cases have been reported each week.
  • The nine cases reported for Guinea came from one prefecture, while the nine cases reported for Sierra Leone came from two districts. This is the lowest number of total districts to report a confirmed case in Guinea, Liberia, and Sierra Leone since May 2014.
  • In Guinea, the nine reported cases were widely dispersed throughout six separate sub-prefectures. Five of the nine cases were identified post mortem. Four of the nine cases were a registered contact of a previous case, including one of the cases identified post mortem. There were 36 unsafe burials reported from seven prefectures in the week leading up to May 3. Of 374 laboratory samples tested in the week leading up to May 3, 4% tested positive for Ebola. Based on the information above, tracking transmission chains is still a challenge and there remains a possibility of an increase in case reports and/or geographical spread in the coming weeks.
  • In Sierra Leone, five of the nine reported cases were from a district that borders the prefecture in Guinea that reported cases. Three of the nine cases were identified post mortem, and two of the nine cases were a registered contact of a previous case. After further investigation, an additional five of the nine cases were found to be linked to a known chain of transmission. Of 1654 samples tested in the week leading up to May 3, less than 1% tested positive for Ebola.
  • The last confirmed patient with Ebola in Liberia passed away on March 27. Heightened vigilance is being maintained throughout the country, with 319 new laboratory samples tested for Ebola in the week leading up to May 3. On May 9, 42 days will have elapsed since the burial of the last confirmed case in the country.
  • For the third consecutive week, no new healthcare worker infections were reported in the week leading up to May 3. There have been a total of 868 confirmed healthcare worker infections reported in Guinea, Liberia, and Sierra Leone since the start of the outbreak, with 507 reported deaths.

Previous Outbreak Updates (April 2015)

April 29, 2015

Outbreak Update
  • Ebola virus has been found in the semen of some men who have recovered from Ebola infection. It is possible that Ebola could be transmitted through sex. Until more information is known, avoid contact with semen from a male survivor. If male survivors have sex (oral, vaginal, or anal sex), a condom should be used correctly and consistently every time. The risk of getting Ebola from semen is considered to be very low and likely decreases over time. CDC and other public health partners are continuing to study Ebola transmission and will share what is known as it becomes available.
  • According to the WHO’s April 29 SitRep, a total of 33 new confirmed Ebola cases were reported in Guinea and Sierra Leone in the week leading up to April 26, compared to 31 the previous week. Five prefectures in Guinea and three districts in Sierra Leone reported a new confirmed case. Liberia reported no new confirmed cases in the week leading up to April 26. Thirty-nine of the 55 districts in Guinea, Liberia, and Sierra Leone that reported at least one confirmed case of Ebola since the start of the outbreak have not reported a case in over six weeks.
  • In Guinea and Sierra Leone, cases continue to be identified after post-mortem testing and about half of all new cases arise in people not identified as contacts of previous cases, suggesting that surveillance and community engagement still require improvement in some areas. A case-finding and community-awareness campaign took place in one Guinean prefecture from April 24-27, with over 57,000 households visited. During the operation, there was a 91% increase in the number of alerts reported. None of the alerts resulted in confirmed cases; however, ten laboratory samples are still pending. Similar operations are planned for four other prefectures.
  • The last confirmed patient with Ebola in Liberia passed away on March 27. Heightened vigilance is being maintained throughout the country, with 194 new laboratory samples tested for Ebola in the four days leading up to April 23. On May 9, 42 days will have elapsed since the burial of the last confirmed case in the country.

April 24, 2015

Outbreak Update
  • Ebola virus has been found in the semen of some men who have recovered from Ebola infection. It is possible that Ebola could be transmitted through sex. Until more information is known, avoid contact with semen from a male survivor. If male survivors have sex (oral, vaginal, or anal sex), a condom should be used correctly and consistently every time. The risk of getting Ebola from semen is considered to be very low and likely decreases over time. CDC and other public health partners are continuing to study Ebola transmission and will share what is known as it becomes available.
  • According to the WHO’s April 22 SitRep, a total of 33 new confirmed Ebola cases were reported in Guinea and Sierra Leone in the week leading up to April 19, compared to 37 the previous week. Liberia reported no new confirmed cases in the week leading up to April 19.
  • Eight prefectures in Guinea and Sierra Leone reported a new confirmed case in the week leading up to April 19.
  • In Guinea, a case-finding and community sensitization operation took place from April 12 to15. Twelve new confirmed cases were identified, seven of these from post-mortem testing. Similar operations are being planned for additional prefectures.
  • The last confirmed patient with Ebola in Liberia passed away on March 27. No confirmed cases have been identified among contacts of the patient.

April 15, 2015

Outbreak Update
  • According to the WHO’s April 8 SitRep, a total of 37 new confirmed Ebola cases were reported in Guinea and Sierra Leone in the week leading up to April 12, compared to 30 the previous week. Liberia reported no new confirmed cases in the week leading up to April 12.
  • Eight prefectures in Guinea and Sierra Leone reported a new confirmed case in the week leading up to April 12. This is the lowest number of districts to report a confirmed case since the end of May 2014.
  • In Guinea, a case-finding and community sensitization operation took place from April 12 to15. Twenty-three suspected cases were identified and tested during the operation. Similar operations are being planned for additional prefectures.
  • The last confirmed patient with Ebola in Liberia passed away on March 27. There are no confirmed cases among the 332 contacts identified.

April 8, 2015

Outbreak Update
  • According to WHO’s April 8 SitRep, 30 new confirmed Ebola cases were reported, which is the lowest weekly total since the third week of May 2014. Cases in Guinea decreased from 57 to 21 in the week up to April 5. Sierra Leone experienced its fifth consecutive week of decreasing new cases and reported zero new cases on three days in the week up to April 5. Liberia reported no new confirmed cases in the week up to April 5.
  • In the week up to April 5, there were no new cases of Ebola in healthcare workers. Several private clinics in Guinea were closed due to the 45-day state health emergency in five prefectures.
  • The last confirmed patient with Ebola in Liberia passed away on March 27. Investigations are ongoing to establish the origin of infection, with 332 contacts being monitored.

April 1, 2015

Outbreak Update
  • According to WHO’s April 1 SitRep, the number of new Ebola cases increased in Guinea in the week up to March 29, while Sierra Leone experienced its fourth consecutive week of decreasing new cases. Liberia reported no new confirmed cases in the week up to March 29.
  • Guinea has declared a 45-day state of health emergency in five prefectures. The capital, Conakry, will also be subject to emergency measures, including the restriction of movement in areas of transmission, the temporary closure and quarantine of private facilities where Ebola cases have been detected, and limitation of burial participation to close relatives only.
  • The last confirmed patient with Ebola in Liberia passed away on March 27. Investigations are ongoing to establish the origin of infection, with 185 contacts being monitored.

Previous Outbreak Updates (March 2015)

March 25, 2015

Outbreak Update
  • After no new cases for three consecutive weeks, Liberia reported a new confirmed case of Ebola on March 20. Investigations into the origin of the case are ongoing.
  • According to WHO’s March 25 Situation Report, the lowest weekly total of new confirmed cases in 2015 was reported in the week up to March 22 across Guinea, Liberia, and Sierra Leone.
  • CDC continues to investigate potential Ebola exposure among individuals in Sierra Leone, including several American citizens, following the identification of an American volunteer healthcare worker who tested positive for Ebola. That healthcare worker returned to the United States by medevac and was admitted to the NIH Clinical Center on March 13 for treatment.

March 18, 2015

Outbreak Update
  • CDC continues to investigate potential Ebola exposure among individuals in Sierra Leone, including several American citizens, following the identification of an American volunteer healthcare worker who tested positive for Ebola.  That healthcare worker returned to the United States by medevac and was admitted to the NIH Clinical Center on March 13 for treatment.
  • According to WHO’s March 18 Situation Report, Liberia has reported no new confirmed cases for three consecutive weeks. Once 42 days have passed since the last known patient tested negative a second time for Ebola, the country can be declared free of Ebola virus transmission.
  • Cases continue to be reported in Guinea and Sierra Leone. Guinea reported its highest weekly total for 2015 in the week up to March 15. Sierra Leone, however, reported its lowest weekly total since late June 2014.

March 11, 2015

Outbreak Update
  • On March 10, WHO officially announced the United Kingdom free of Ebola.
  • Liberia reported no new confirmed cases of Ebola for the second consecutive week, according to WHO’s March 11 Situation Report . New cases continue to be reported in Guinea and Sierra Leone.

March 4, 2015

Outbreak Update
  • New confirmed cases of Ebola increased in the week up to March 1, according to WHO’s March 4 Situation Report. The weekly number of confirmed cases increased in both Sierra Leone and Guinea.
  • In Liberia, no new confirmed cases were reported in the week up to March 1 for the first time since May 2014. There has been considerable progress in Liberia, and public health authorities are tracking cases from a single active chain of transmission.

Previous Outbreak Updates (Feb 2015)

February 25, 2015

Outbreak Update
  • According to WHO’s Feb. 25 Situation Report, the steep decline in case incidence in Sierra Leone from December to the end of January has halted, and transmission remains widespread. Case incidence decreased in Guinea in the week up to February 22 compared with the week before, and cases continue to arise from unknown chains of transmission. In Liberia, transmission continues at very low levels, with only one new case reported in the week up to February 22.

February 18, 2015

Outbreak Update
  • According to WHO’s Feb. 18 Situation Report, Guinea reported a decrease in cases from the previous week, the first week-to-week decline since January 25. Transmission remains widespread in Sierra Leone and is most intense in the capital, Freetown. Following the steep decline in case incidence in Sierra Leone from December until the end of January, incidence has now stabilized.

February 11, 2015

Outbreak Update
  • Total weekly case incidence increased for the second consecutive week. Guinea reported a sharp increase in incidence, with 65 new confirmed cases compared with 39 the week before. Transmission remains widespread in Sierra Leone, which reported 76 new confirmed cases. Liberia continues to report a low number of new confirmed cases.
  • Weekly case incidence increased for Guinea, Liberia, and Sierra Leone for the first time this year.
  • All contacts of the Ebola patient diagnosed in the United Kingdom have now completed the 21-day follow-up period. The patient has recovered and was discharged from the hospital on January 24.

February 4, 2015

Outbreak Update
  • Weekly case incidence increased for Guinea, Liberia, and Sierra Leone for the first time this year.
  • All contacts of the Ebola patient diagnosed in the United Kingdom have now completed the 21-day follow-up period. The patient has recovered and was discharged from the hospital on January 24. 

Previous Outbreak Updates (Jan 2015)

January 30, 2015

January 30, 2015

Outbreak Update
  • For the first time since June 29, 2014, there have been fewer than 100 new confirmed cases reported in a week in Guinea, Liberia, and Sierra Leone.
  • On January 18, 2015, Malian authorities and the WHO announced the end of the outbreak of Ebola in Mali. Forty-two days have elapsed since the last Ebola case tested negative in laboratory tests on December 6, 2014.

January 21, 2015

January 21, 2015

Outbreak Update
  • On January 18, 2015, Malian authorities and the WHO announced the end of the outbreak of Ebola in Mali. Forty-two days have elapsed since the last Ebola case tested negative in laboratory tests on December 6, 2014.

Previous Outbreak Updates (December 2014)

December 31, 2014

Outbreak Update
  • On December 29, 2014, the WHO was notified by the National IHR Focal Point for the United Kingdom of a laboratory-confirmed case of Ebola. This is the first Ebola case to be detected on United Kingdom soil. The case is a female healthcare worker who has returned from volunteering at an Ebola treatment center in Sierra Leone.

December 11, 2014

Outbreak Update
  • As reported in the latest WHO Situation Report, Sierra Leone now has the highest total number of reported cases of the three intense transmission countries with 7,897 cases to date.
  • All contacts of Ebola cases in the United States have completed the 21-day follow-up period.
  • On December 2, WHO officially declared the Ebola outbreak in Spain over. On October 6, the first human-to-human transmission outside Africa was confirmed by the Spanish National Reference Laboratory. The healthcare worker was considered free of Ebola as of October 21 and in the 42-day period since, there have been no additional Ebola cases in Spain.

December 2, 2014

Outbreak Update
  • On December 2, WHO officially declared the Ebola outbreak in Spain over. On October 6, the first human-to-human transmission outside Africa was confirmed by the Spanish National Reference Laboratory. The healthcare worker was considered free of Ebola as of October 21 and in the 42-day period since, there have been no additional Ebola cases in Spain.

December 18, 2014

Outbreak Update
  • According to the latest WHO Situation Report, no new cases have been reported in Mali since November 24, 2014. All identified contacts connected with both the initial case and the outbreak in Bamako have now completed 21-day follow-up.

Previous Outbreak Updates (November 2014)

November 28, 2014

Outbreak Update
  • According to a WHO Situation Report [PDF - 14 pages] released on November 26, 2014, transmission of Ebola remains intense in Guinea, Liberia, and Sierra Leone. Case incidence is still increasing in Sierra Leone.
  • A total of 8 confirmed and probable cases, including 6 deaths, have now been reported in Mali. The most recent cases are not related to the country’s first Ebola case who died on October 24. All identified contacts connected to the initial case have completed 21 day follow-up.

November 14, 2014

Outbreak Update

In Mali, there have been 4 reported cases, including 3 reported deaths. The WHO situation report of 12 November reported 4 cases (2 confirmed and 2 probable) and 4 deaths in Mali. One probable case and death has been reclassified and is now excluded from the Mali case count.

November 12, 2014

Outbreak Update
  • According to a WHO situation report [PDF - 14 pages] released on November 12, transmission remains intense in Guinea, Liberia, and Sierra Leone, and case incidence is still increasing in Sierra Leone.
  • Interventions to contain the disease include infection prevention and control; diagnosing, isolating, and treating patients; contact tracing; and safe and dignified burials.
  • A total of 4 confirmed and probable cases, including 4 deaths, have now been reported in Mali. These cases are not related to the country’s first case, who died on October 24.
  • All Ebola patients in the United States have been discharged from the hospital.

November 5, 2014

Outbreak Update
  • On November 5, WHO released a situation report that included a decrease in the number of total cases since the report released on October 31, 2014. WHO reports that the decrease in total cases results from a change in data sources.
  • On November 5, WHO reported that all 83 contacts of the health worker infected in Madrid, Spain have completed the 21-day follow-up period.
  • On October 29, WHO released a situation report that included an increase of 3792 cases since the report released on October 22, 2014. WHO reports that the increase in  total cases results from a more comprehensive assessment of patient databases. The additional 3792 cases have occurred throughout the epidemic period.
  • On October 23, the New York City Department of Health and Mental Hygiene reported a case of Ebola in a medical aid worker who had returned to New York City from Guinea, where the medical aid worker had served with Doctors Without Borders. The diagnosis was confirmed by CDC on October 24.
  • On October 23, Mali reported its first confirmed case of Ebola in a child who had traveled there from Guinea. The child passed away on October 24.
  • WHO officially declared Senegal and Nigeria free of Ebola virus transmission on October 17 and 20, respectively.
  • On October 15, a second healthcare worker at Texas Presbyterian Hospital who provided care for the index patient tested positive for Ebola. The patient has since recovered and was discharged from Emory University Hospital on October 28.
  • On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient tested positive for Ebola. The patient has since recovered and was discharged from the NIH Clinical Center on October 24.
  • CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
  • On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
  • New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.

Previous Outbreak Updates (October 2014)

October 29, 2014

Outbreak Update
  • On October 29, WHO released a situation report that included an increase of 3792 cases since the report released on October 22, 2014. WHO reports that the increase in  total cases results from a more comprehensive assessment of patient databases. The additional 3792 cases have occurred throughout the epidemic period.
  • On October 23, the New York City Department of Health and Mental Hygiene reported a case of Ebola in a medical aid worker who had returned to New York City from Guinea, where the medical aid worker had served with Doctors Without Borders. The diagnosis was confirmed by CDC on October 24.
  • On October 23, Mali reported its first confirmed case of Ebola in a child who had traveled there from Guinea. The child passed away on October 24.
  • WHO officially declared Senegal and Nigeria free of Ebola virus transmission on October 17 and 20, respectively.
  • On October 15, a second healthcare worker at Texas Presbyterian Hospital who provided care for the index patient tested positive for Ebola. The patient is receiving care at a hospital in Atlanta, Georgia.
  • On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient tested positive for Ebola. The patient has since recovered and was discharged from the NIH Clinical Center on October 24.
  • CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
  • On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
  • New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.

October 25, 2014

Outbreak Update
  • On October 23, the New York City Department of Health and Mental Hygiene reported a case of Ebola in a medical aid worker who had returned to New York City from Guinea, where the medical aid worker had served with Doctors Without Borders. The diagnosis was confirmed by CDC on October 24.
  • On October 23, Mali reported its first confirmed case of Ebola in a child who had traveled there from Guinea. The child passed away on October 24.
  • WHO officially declared Senegal and Nigeria free of Ebola virus transmission on October 17 and 20, respectively.
  • On October 15, a second healthcare worker at Texas Presbyterian Hospital who provided care for the index patient tested positive for Ebola. The patient is receiving care at a hospital in Atlanta, Georgia.
  • On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient tested positive for Ebola. The patient has since recovered and was discharged from the NIH Clinical Center on October 24.
  • CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
  • On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
  • New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.

October 20, 2014

Outbreak Update
  • The lines on the tabular situation reports, sent to WHO headquarters each day by its country office in Nigeria, have now been full of zeros for 42 days. On October 20, WHO officially declared that Nigeria is now free of Ebola virus transmission.
  • On the morning of October 14, a second healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported to the hospital with a low-grade fever and was isolated. The healthcare worker tested positive for Ebola according to preliminary tests.
  • On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported a low-grade fever and was referred for testing. The healthcare worker tested positive for Ebola according to preliminary tests by the Texas Department of State Health Services’ laboratory. The healthcare worker was isolated after the initial report of a fever and remains so now. CDC confirms that the healthcare worker is positive for Ebola.
  • CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
  • A confirmed case of Ebola has been reported in Spain.
  • On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
  • New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
  • Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. All contacts in both countries have now completed their 21-day follow up, with no further cases of Ebola reported.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.

October 15, 2014

Outbreak Update
  • On the morning of October 14, a second healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported to the hospital with a low-grade fever and was isolated. The healthcare worker tested positive for Ebola according to preliminary tests.
  • On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported a low-grade fever and was referred for testing. The healthcare worker tested positive for Ebola according to preliminary tests by the Texas Department of State Health Services’ laboratory. The healthcare worker was isolated after the initial report of a fever and remains so now. CDC confirms that the healthcare worker is positive for Ebola.
  • CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
  • A confirmed case of Ebola has been reported in Spain.
  • On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
  • New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
  • Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. All contacts in both countries have now completed their 21-day follow up, with no further cases of Ebola reported.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.

October 12, 2014

Outbreak Update
  • On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported a low-grade fever and was referred for testing. The healthcare worker has tested positive for Ebola according to preliminary tests by the Texas Department of State Health Services’ laboratory. The healthcare worker was isolated after the initial report of a fever and remains so now. CDC confirms that the healthcare worker is positive for Ebola.
  • CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
  • A confirmed case of Ebola has been reported in Spain.
  • On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
  • New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
  • Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. All contacts in both countries have now completed their 21-day follow up, with no further cases of Ebola reported.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.

October 8, 2014

Outbreak Update
  • CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
  • A confirmed case of Ebola has been reported in Spain.
  • On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
  • New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
  • Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. All contacts in both countries have now completed their 21-day follow up, with no further cases of Ebola reported.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.

October 2, 2014

Outbreak Update
  • On 9/30/2014, CDC confirmed, the first travel-associated case of Ebola to be diagnosed in the United States.
  • New cases have been reported from Guinea, Liberia, and Sierra Leone. Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. In Senegal, all contacts have now completed their 21-day follow up, with no further cases of Ebola reported.
  • On August 29, 2014, Senegal's Ministry of Public Health and Social Affairs announced a case of Ebola virus disease (EVD) in Senegal. The case is in a man from Guinea who traveled to Senegal.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
  • HHS has contracted with Mapp Biopharmaceutical Inc. to develop and manufacture ZMapp. Mapp Biopharmaceutical will manufacture a small amount of the drug for early stage clinical safety studies and nonclinical studies.
  • NIH will begin initial human testing of an investigational vaccine to prevent EVD in early September and is working with a company to develop an antiviral drug to treat Ebola.
  • U.S. Department of Defense has funded two companies that are developing drug therapies for Ebola and is working with another company to develop an Ebola vaccine.
  • CDC returned a staff member from West Africa by charter flight after the employee had low-risk contact with an international health worker who recently tested positive for Ebola. The CDC staff member was not sick with Ebola, did not show symptoms of the disease, and therefore posed no risk to friends, family, co-workers, or the public.

Previous Outbreak Updates (September 2014)

September 29, 2014

Outbreak Update
  • No confirmed Ebola cases have been reported in the United States.
  • New cases have been reported from Guinea, Liberia, and Sierra Leone. Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. In Senegal, all contacts have now completed their 21-day follow up, with no further cases of Ebola reported.
  • On August 29, 2014, Senegal's Ministry of Public Health and Social Affairs announced a case of Ebola virus disease (EVD) in Senegal. The case is in a man from Guinea who traveled to Senegal.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
  • HHS has contracted with Mapp Biopharmaceutical Inc. to develop and manufacture ZMapp. Mapp Biopharmaceutical will manufacture a small amount of the drug for early stage clinical safety studies and nonclinical studies.
  • NIH will begin initial human testing of an investigational vaccine to prevent EVD in early September and is working with a company to develop an antiviral drug to treat Ebola.
  • U.S. Department of Defense has funded two companies that are developing drug therapies for Ebola and is working with another company to develop an Ebola vaccine.
  • CDC returned a staff member from West Africa by charter flight after the employee had low-risk contact with an international health worker who recently tested positive for Ebola. The CDC staff member was not sick with Ebola, did not show symptoms of the disease, and therefore posed no risk to friends, family, co-workers, or the public.

September 23, 2014

Outbreak Update
  • No confirmed Ebola cases have been reported in the United States.
  • New cases have been reported from Guinea, Liberia, and Sierra Leone. Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. In Senegal, all contacts have now completed their 21-day follow up, with no further cases of Ebola reported.
  • On August 29, 2014, Senegal's Ministry of Public Health and Social Affairs announced a case of Ebola virus disease (EVD) in Senegal. The case is in a man from Guinea who traveled to Senegal.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
  • HHS has contracted with Mapp Biopharmaceutical Inc. to develop and manufacture ZMapp. Mapp Biopharmaceutical will manufacture a small amount of the drug for early stage clinical safety studies and nonclinical studies.
  • NIH will begin initial human testing of an investigational vaccine to prevent EVD in early September and is working with a company to develop an antiviral drug to treat Ebola.
  • U.S. Department of Defense has funded two companies that are developing drug therapies for Ebola and is working with another company to develop an Ebola vaccine.
  • CDC returned a staff member from West Africa by charter flight after the employee had low-risk contact with an international health worker who recently tested positive for Ebola. This CDC staff member is not sick and does not show symptoms of Ebola. Friends, family, co-workers, and the public are not at risk of getting Ebola from this person.

September 18, 2014

Outbreak Update
  • No confirmed Ebola cases have been reported in the United States.
  • New cases have been reported from Guinea, Liberia, and Sierra Leone. Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively.
  • On August 29, 2014, Senegal's Ministry of Public Health and Social Affairs announced a case of Ebola virus disease (EVD) in Senegal. The case is in a man from Guinea who traveled to Senegal.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
  • HHS has contracted with Mapp Biopharmaceutical Inc. to develop and manufacture ZMapp. Mapp Biopharmaceutical will manufacture a small amount of the drug for early stage clinical safety studies and nonclinical studies.
  • NIH will begin initial human testing of an investigational vaccine to prevent EVD in early September and is working with a company to develop an antiviral drug to treat Ebola.
  • U.S. Department of Defense has funded two companies that are developing drug therapies for Ebola and is working with another company to develop an Ebola vaccine.
  • CDC returned a staff member from West Africa by charter flight after the employee had low-risk contact with an international health worker who recently tested positive for Ebola. This CDC staff member is not sick and does not show symptoms of Ebola. Friends, family, co-workers, and the public are not at risk of getting Ebola from this person.

September 6, 2014

Outbreak Update - As of August 28, 2014
  • No confirmed Ebola cases have been reported in the United States.
  • On August 29, 2014, Senegal's Ministry of Public Health and Social Affairs announced a case of Ebola virus disease (EVD) in Senegal. The case is in a man from Guinea who traveled to Senegal.
  • The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
  • HHS has contracted with Mapp Biopharmaceutical Inc. to develop and manufacture ZMapp. Mapp Biopharmaceutical will manufacture a small amount of the drug for early stage clinical safety studies and nonclinical studies.
  • NIH will begin initial human testing of an investigational vaccine to prevent EVD in early September and is working with a company to develop an antiviral drug to treat Ebola.
  • U.S. Department of Defense has funded two companies that are developing drug therapies for Ebola and is working with another company to develop an Ebola vaccine.
  • CDC returned a staff member from West Africa by charter flight after the employee had low-risk contact with an international health worker who recently tested positive for Ebola. This CDC staff member is not sick and does not show symptoms of Ebola. Friends, family, co-workers, and the public are not at risk of getting Ebola from this person.

Previous Outbreak Updates (August 2014)

August 28, 2014

Outbreak Update - As of August 26, 2014

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria reported 3069 suspect and confirmed cases of EVD, including 1752 laboratory-confirmed cases, and 1552 deaths.

In Guinea, 648 cases of EVD, including 482 laboratory-confirmed cases, and 430 deaths were reported by the Ministry of Health of Guinea and WHO. Active surveillance continues in Conakry, Guéckédou, Dubreka, Pita, Siguiri, Kourourssa, Macenta, Yamou, and Nzerekore Districts.

The Ministry of Health and Social Welfare of Liberia and WHO reported 1378 clinical cases of EVD, including 322 laboratory-confirmed cases, and 694 deaths. Suspect and confirmed cases have been reported in 13 of 15 Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported 17 suspect cases, including 13 laboratory-confirmed cases, and 6 deaths.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported 1026 suspect and confirmed cases of EVD, including 935 laboratory-confirmed cases, 422 deaths. Reports, investigations, and testing of suspect cases continue across the country.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 28 August 2014

August 22, 2014

Outbreak Update - As of August 20, 2014

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria reported 2615 suspect and confirmed cases of EVD, including 1528 laboratory-confirmed cases, and 1427 deaths.

In Guinea, 607 cases of EVD, including 443 laboratory-confirmed cases, and 406 deaths were reported by the Ministry of Health of Guinea and WHO. Active surveillance continues in Conakry, Guéckédou, Dubreka, Pita, Siguiri, Kourourssa, Macenta, Yamou, and Nzerekore Districts.

The Ministry of Health and Social Welfare of Liberia and WHO reported 1082 clinical cases of EVD, including 269 laboratory-confirmed cases, and 624 deaths. Suspect and confirmed cases have been reported in 11 of 15 Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported 16 suspect cases, including 12 laboratory-confirmed cases, and 5 deaths.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported 910 suspect and confirmed cases of EVD, including 804 laboratory-confirmed cases, 392 deaths. All districts are now reporting clinical patients with EVD. Reports, investigations, and testing of suspect cases continue across the country.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 22 August 2014

August 21, 2014

Outbreak Update - As of August 18, 2014

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria reported 2473 suspect and confirmed cases of EVD, including 1460 laboratory-confirmed cases, and 1350 deaths.

In Guinea, 579 cases of EVD, including 423 laboratory confirmed cases, and 396 deaths were reported by the Ministry of Health of Guinea and WHO. Active surveillance continues in Conakry, Guéckédou, Dubreka, Pita, Siguiri, Kourourssa, Macenta, Yamou, and Nzerekore Districts.

The Ministry of Health and Social Welfare of Liberia and WHO reported 972 clinical cases of EVD, including 242 laboratory confirmations and 576 fatal cases. Suspect and confirmed cases have been reported in 9 of 13 Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported 15 suspect cases, including 12 laboratory confirmations, and 4 deaths.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported 907 suspect and confirmed cases of EVD, including 783 laboratory-confirmed cases, 374 deaths. All districts are now reporting clinical patients with EVD. Reports, investigations, and testing of suspect cases continue across the country.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 20 August 2014

August 19, 2014

Outbreak Update - As of August 16, 2014

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria reported 2240 suspect and confirmed cases of EVD, including 1383 laboratory-confirmed cases, and 1229 deaths.

In Guinea, 543 cases of EVD, including 396 laboratory confirmed cases, and 394 deaths were reported by the Ministry of Health of Guinea and WHO. Active surveillance continues in Conakry, Guéckédou, Dubreka, Pita, Siguiri, Kourourssa, Macenta, Yamou, and Nzerekore Districts.

The Ministry of Health and Social Welfare of Liberia and WHO reported 834 clinical cases of EVD, including 200 laboratory confirmations and 466 fatal cases. Suspect and confirmed cases have been reported in 9 of 13 Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported 15 suspect cases, including 12 laboratory confirmations, and 4 deaths.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported 848 suspect and confirmed cases of EVD, including 775 laboratory-confirmed cases, 365 deaths. All districts are now reporting clinical patients with EVD. Reports, investigations, and testing of suspect cases continue across the country.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 19 August 2014

August 15, 2014

Outbreak Update - As of August 13, 2014

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria reported 2127 suspect and confirmed cases of EVD, including 1310 laboratory-confirmed cases, and 1145 deaths.

In Guinea, 519 cases of EVD, including 376 laboratory confirmed-cases, and 380 deaths were reported by the Ministry of Health of Guinea and WHO. Active surveillance continues in Conakry, Guéckédou, Pita, Siguiri, Kourourssa, Macenta, Yamou, and Nzerekore Districts.

The Ministry of Health and Social Welfare of Liberia and WHO reported 786 clinical cases of EVD, including 190 laboratory confirmations and 413 fatal cases. Suspect and confirmed cases have been reported in 9 of 13 Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported 12 suspect cases, including 11 laboratory confirmations, and 4 deaths.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported 810 suspect and confirmed cases of EVD, including 733 laboratory-confirmed cases, 348 deaths. All districts are now reporting clinical patients with EVD. Reports, investigations, and testing of suspect cases continue across the country.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 15 August 2014

August 13, 2014

Outbreak Update

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria announced a cumulative total of 1975 suspect and confirmed cases of Ebola virus disease (EVD) and 1069 deaths, as of August 11, 2014. Of the 1975 clinical cases, 1251 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 510 cases, including 377 fatal cases and 369 laboratory confirmations of EVD, were reported by the Ministry of Health of Guinea and WHO as of August 11, 2014. Active surveillance continues in Conakry, Guéckédou, Pita, Siguiri, Kourourssa, Macenta, Yamou, and Nzerekore Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 783 suspect and confirmed cases of EHF as of August 11, 2014. Of these 783, 706 cases have been laboratory confirmed and 334 were fatal. All districts are now reporting clinical EVD patients. Reports, investigations, and testing of suspect cases continue across the country.

As of August 11, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 670 clinical cases of EVD, including 166 laboratory confirmations and 355 fatal cases. Suspect and confirmed cases have been reported in 9 of 13 Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported 12 suspect cases, including 10 laboratory confirmations and 3 fatal cases, as of August 11, 2014.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 13 August 2014.

August 12, 2014

Outbreak Update

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria announced a cumulative total of 1848 suspect and confirmed cases of Ebola virus disease (EVD) and 1013 deaths, as of August 9, 2014. Of the 1848 clinical cases, 1176 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 506 cases, including 373 fatal cases and 362 laboratory confirmations of EVD, were reported by the Ministry of Health of Guinea and WHO as of August 9, 2014. Active surveillance continues in Conakry, Guéckédou, Pita, Siguiri, Kourourssa, Macenta, Yamou, and Nzerekore Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 730 suspect and confirmed cases of EHF as of August 9, 2014. Of these 730, 656 cases have been laboratory confirmed and 315 were fatal. All districts are now reporting clinical EVD patients. Reports, investigations, and testing of suspect cases continue across the country.

As of August 9, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 599 clinical cases of EVD, including 158 laboratory confirmations and 323 fatal cases. Suspect and confirmed cases have been reported in 9 of 13 Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported 13 suspect cases, including 2 fatal cases, as of August 9, 2014.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 9 August 2014.

August 8, 2014

Outbreak Update

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria announced a cumulative total of 1779 suspect and confirmed cases of Ebola virus disease (EVD) and 961 deaths, as of August 6, 2014. Of the 1779 clinical cases, 1134 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 495 cases, including 367 fatal cases and 355 laboratory confirmations of EVD, were reported by the Ministry of Health of Guinea and WHO as of August 6, 2014. Active surveillance continues in Conakry, Guéckédou, Pita, Siguiri, Kourourssa, Macenta, and Nzerekore Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 717 suspect and confirmed cases of EHF as of August 6, 2014. Of these 717, 631 cases have been laboratory confirmed and 298 were fatal. All districts are now reporting clinical EVD patients. Reports, investigations, and testing of suspect cases continue across the country.

As of August 6, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 554 clinical cases of EVD, including 148 laboratory confirmations and 294 fatal cases. Suspect and confirmed cases have been reported in 9 of 13 Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported 13 suspect cases, including 2 fatal cases, as of August 6, 2014.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 8 August 2014.

August 6, 2014

Outbreak Update

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria announced a cumulative total of 1440 suspect and confirmed cases of Ebola virus disease (EVD) and 826 deaths, as of July 30, 2014. Of the 1440 clinical cases, 953 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 472 cases, including 346 fatal cases and 337 laboratory confirmations of EVD, were reported by the Ministry of Health of Guinea and WHO as of July 30, 2014. Active surveillance continues in Conakry, Guéckédou, Boffa, Pita, Siguiri, and Kourourssa Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 574 suspect and confirmed cases of EHF as of July 30, 2014. Of these 574, 507 cases have been laboratory confirmed and 252 were fatal. Districts reporting clinical EVD patients include Kailahun, Kenema, Kambia, Port Loko, Bo and Western Area, which includes the capital, Freetown. More recently, Tonkolili, Bambali, Moyamba, and Bonthe Districts have also reported confirmed cases of EVD. Reports, investigations, and testing of suspect cases continue across the country.

As of July 30, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 391 clinical cases of EVD, including 109laboratory confirmations and 227 fatal cases. Suspect and confirmed cases have been reported from Lofa, Montserado, Margibi, Bomi, Bong, Nimba, RiverCess, and Grand Cape Mount Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported one probable fatal case and 2 suspect cases as of July 30, 2014.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 30 July 2014.

August 4, 2014

Outbreak Update

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria announced a cumulative total of 1603 suspect and confirmed cases of Ebola virus disease (EVD) and 887 deaths, as of August 1, 2014. Of the 1603 clinical cases, 1009 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 485 cases, including 358 fatal cases and 340 laboratory confirmations of EVD, were reported by the Ministry of Health of Guinea and WHO as of August 1, 2014. Active surveillance continues in Conakry, Guéckédou, Boffa, Pita, Siguiri, and Kourourssa Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 646 suspect and confirmed cases of EHF as of August 1, 2014. Of these 646, 540 cases have been laboratory confirmed and 273 were fatal. Districts reporting clinical EVD patients include Kailahun, Kenema, Kambia, Port Loko, Bo and Western Area, which includes the capital, Freetown. More recently, Tonkolili, Bambali, Moyamba, Bonthe, and Punjehun Districts have also reported confirmed cases of EVD. Reports, investigations, and testing of suspect cases continue across the country.

As of August 1, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 468 clinical cases of EVD, including 129 laboratory confirmations and 255 fatal cases. Suspect and confirmed cases have been reported from Lofa, Montserado, Margibi, Bomi, Bong, Nimba, RiverCess, Grand Cape Mount, and Grand Bassa Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported 1 probable fatal case and 4 suspect cases as of August 1, 2014.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 4 August 2014.

August 3, 2014

Outbreak Update

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria announced a cumulative total of 1440 suspect and confirmed cases of Ebola virus disease (EVD) and 826 deaths, as of July 30, 2014. Of the 1440 clinical cases, 953 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 472 cases, including 346 fatal cases and 337 laboratory confirmations of EVD, were reported by the Ministry of Health of Guinea and WHO as of July 30, 2014. Active surveillance continues in Conakry, Guéckédou, Boffa, Pita, Siguiri, and Kourourssa Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 574 suspect and confirmed cases of EHF as of July 30, 2014. Of these 574, 507 cases have been laboratory confirmed and 252 were fatal. Districts reporting clinical EVD patients include Kailahun, Kenema, Kambia, Port Loko, Bo and Western Area, which includes the capital, Freetown. More recently, Tonkolili, Bambali, Moyamba, and Bonthe Districts have also reported confirmed cases of EVD. Reports, investigations, and testing of suspect cases continue across the country.

As of July 30, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 391 clinical cases of EVD, including 109laboratory confirmations and 227 fatal cases. Suspect and confirmed cases have been reported from Lofa, Montserado, Margibi, Bomi, Bong, Nimba, RiverCess, and Grand Cape Mount Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported one probable fatal case and 2 suspect cases as of July 30, 2014.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all four countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria, and WHO 30 July 2014.

July 2014

July 31, 2014

Outbreak Update

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, Liberia, and Nigeria announced a cumulative total of 1323 suspect and confirmed cases of Ebola virus disease (EVD) and 729 deaths, as of July 27, 2014. Of the 1323 clinical cases, 909 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 460 cases, including 339 fatal cases and 336 laboratory confirmations of EVD, were reported by the Ministry of Health of Guinea and WHO as of July 27, 2014. Active surveillance continues in Conakry, Guéckédou, Boffa, Fria, Siguiri, and Kourourssa Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 533 suspect and confirmed cases of EHF as of July 27, 2014. Of these 533, 473 cases have been laboratory confirmed and 233 were fatal. Districts reporting clinical EVD patients include Kailahun, Kenema, Kambia, Port Loko, Bo and Western Area, which includes the capital, Freetown. More recently, Tonkolili, Bambali, Moyamba, and Bonthe Districts have also reported confirmed cases of EVD. Reports, investigations, and testing of suspect cases continue across the country.

As of July 27, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 329 clinical cases of EVD, including 100 laboratory confirmations and 156 fatal cases. Suspect and confirmed cases since May have been reported from Lofa, Montserado, Margibi, and more recently, Bomi, Bong, Nimba and Grand Gedeh Counties. Laboratory testing is being conducted in Monrovia.

In Nigeria, WHO and the Nigerian Ministry of Health reported one probable case as of July 27, 2014. This case has not yet been laboratory confirmed.

CDC is in regular communication with all of the Ministries of Health (MOH), WHO, MSF, and other partners regarding the outbreak. Currently CDC has personnel in all three countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, the Ministry of Health of Nigeria and WHO  29 July 2014.

July 28, 2014

Outbreak Update

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, and Liberia, announced a cumulative total of 1201 suspect and confirmed cases of Ebola virus disease (EVD) and 672 deaths, as of July 23, 2014. Of the 1201 clinical cases, 814 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 427 cases, including 319 fatal cases and 311 laboratory confirmations of EVD, were reported by the Ministry of Health (MoH) of Guinea and WHO as of July 23, 2014. Active surveillance continues in Conakry, Guéckédou, Boffa, Dubreka, Fria, and Siguiri Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 525 suspect and confirmed cases of EVD as of July 23, 2014. Of these 525, 419 cases have been laboratory confirmed and 224 were fatal. Districts reporting clinical EVD patients include Kailahun, Kenema, Kambia, Port Loko, Western, and Bo. Reports, investigations, and testing of suspect cases continue across the country.

As of July 23, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 249 clinical cases of EVD, including 84 laboratory confirmations and 129 fatal cases. Cases since May have been reported from Lofa, Montserado, Margibi, Bomi, Bong, and Nimba Counties. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has personnel in Guinea, Liberia, and a team is expected in Sierra Leone soon. All teams are assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO   27 July 2014.

July 24, 2014

Outbreak Update

The World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, and Liberia, announced a cumulative total of 1093 suspect and confirmed cases of Ebola virus disease (EVD) and 660 deaths, as of July 20, 2014. Of the 1093 clinical cases, 786 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 415 cases, including 314 fatal cases and 304 laboratory confirmations of EVD, were reported by the Ministry of Health (MoH) of Guinea and WHO as of July 20, 2014. Active surveillance continues in Conakry, Guéckédou, Boffa, Dubreka, and Fria Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 454 suspect and confirmed cases of EHF as of July 20, 2014. Of these 454, 405 cases have been laboratory confirmed and 219 were fatal. Districts reporting clinical EVD patients include Kailahun, Kenema, Kambia, Port Loko, Western, and Bo. Reports, investigations, and testing of suspect cases continue across the country. Laboratory testing is being conducted in Kenema and Kailahun cities.

As of July 20, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 224 clinical cases of EVD, including 77 laboratory confirmations and 127 fatal cases. Cases since May have been reported from Lofa, Montserado, Margibi, and more recently, Bomi, Bong, and Nimba Counties. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has personnel in all three countries assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO  23 July 2014.

July 21, 2014

Outbreak Update

As of July 17, 2014, the World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, and Liberia, announced a cumulative total of 1048 suspect and confirmed cases of Ebola virus disease (EVD) and 632 deaths. Of the 1048 clinical cases, 745 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 410 cases, including 310 fatal cases and 301 laboratory confirmations of EVD, were reported by the Ministry of Health (MoH) of Guinea and WHO as of July 17, 2014. Active surveillance continues in Conakry, Guéckédou, Boffa, Dubreka, and Fria Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 442 suspect and confirmed cases of EHF as of July 17, 2014. Of these 442, 368 cases have been laboratory confirmed and 206 were fatal. Districts reporting clinical EVD patients include Kailahun, Kenema, Kambia, Port Loko, Western, and Bo. Reports, investigations, and testing of suspect cases continue across the country. Laboratory testing is being conducted in Kenema city and Kailahun.

As of July 17, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 196 clinical cases of EVD, including 76 laboratory confirmations and 116 fatal cases. Cases since May have been reported from Lofa, Montserado, Margibi, and more recently, Bomi, Bong, and Nimba Counties. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 5 person team in Guinea, one staff person in Sierra Leone, and a team of 6 in Liberia assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO 19 July 2014.

July 16, 2014

Outbreak Update

As of July 12, 2014, the World Health Organization, in partnership with the Ministries of Health in Guinea, Sierra Leone, and Liberia, announced a cumulative total of 964 suspect and confirmed cases of Ebola virus disease (EVD) and 603 deaths. Of the 964 clinical cases, 706 cases have been laboratory confirmed for Ebola virus infection.

In Guinea, 406 cases, including 304 fatal cases and 297 laboratory confirmations of EVD, were reported by the Ministry of Health (MoH) of Guinea and WHO as of July 12, 2014. Active surveillance continues in Conakry, Guéckédou, Macenta, and Boffa Districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 386 suspect and confirmed cases of EHF as of July 12, 2014. Of these 386, 339 cases have been laboratory confirmed and 192 were fatal. Districts reporting clinical EVD patients include Kailahun, Kenema, Kambia, Port Loko, Western, and Bo. Reports, investigations, and testing of suspect cases continue across the country. Laboratory testing is being conducted in Kenema city and Kailahun.

As of July 12, 2014, the Ministry of Health and Social Welfare of Liberia and WHO reported 172 clinical cases of EVD, including 70 laboratory confirmations and 105 fatal cases. Cases since May have been reported from Lofa, Montserado, and Margibi Counties. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 6 person team in Guinea, one staff person in Sierra Leone, and a team of 3 in Liberia assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO 15 July 2014.

July 14, 2014

Outbreak Update

As of July 8, 2014, the World Health Organization announced a cumulative total of 888 suspect and confirmed cases of Ebola hemorrhagic fever (EHF) and 539 deaths being reported from Guinea, Sierra Leone, and Liberia. Of the 888, 664 cases have been laboratory confirmed.

In Guinea, 409 cases, with 309 fatal cases and 296 laboratory confirmations, were reported by the Ministry of Health (MoH) of Guinea and WHO as of July 8, 2014. Active surveillance continues in Conakry, Guéckédou, Macenta, and Boffa.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 337 suspect and confirmed cases of EHF as of July 8, 2014. Of these 337, 298 cases have been laboratory confirmed and 142 were fatal. Districts reporting clinical EHF patients include Kailahun, Kenema, Kambia, Port Loko, Western, and Bo. Reports, investigations, and testing of suspect cases continue across the country. Laboratory testing is being conducted in Kenema city and Kailahun.

As of July 8, 2014, the Ministry of Health and Social Welfare of Liberia and WHO have reported 142 clinical cases of EHF, including 70 laboratory confirmations, and 88 fatal cases. Cases since May have been reported from Lofa, Montserado, and Margibi Counties. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 6 person team in Guinea a one staff person in Sierra Leone assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO 10 July 2014.

July 8, 2014

Outbreak Update

As of July 6, 2014, the World Health Organization announced a cumulative total of 844 suspect and confirmed cases of Ebola hemorrhagic fever (EHF) and 518 deaths being reported from Guinea, Sierra Leone, and Liberia. Of the 884, 626 cases have been laboratory confirmed.

In Guinea, 408 cases, with 307 fatal cases and 294 laboratory confirmations, were reported by the Ministry of Health (MoH) of Guinea and WHO as of July 6, 2014. Active surveillance continues in Conakry, Guéckédou, Macenta, Télimélé, Dubreka, Boffa, and Kouroussa districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 305 suspect and confirmed cases of EHF as of July 6, 2014. Of these 305, 269 cases have been laboratory confirmed and 127 were fatal. Districts reporting clinical EHF patients include Kailahun, Kenema, Kambia, Port Loko, Western, and Bo. Reports and investigations of suspect cases continue across the country. Laboratory testing is being conducted in Kenema city and Kailahun.

As of July 6, 2014, the Ministry of Health and Social Welfare of Liberia and WHO have reported 131 clinical cases of EHF, including 63 laboratory confirmations, and 84 fatal cases. Cases since May have been reported from Lofa, Montserado, and more recently, Margibi Counties. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 7 person team in Guinea assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO 7 July 2014.

July 7, 2014

Outbreak Update

As of July 2, 2014, the World Health Organization announced a cumulative total of 779 suspect and confirmed cases of Ebola hemorrhagic fever (EHF) and 481 deaths being reported from Guinea, Sierra Leone, and Liberia. Of the 779, 557 cases have been laboratory confirmed.

In Guinea, 412 cases, with 305 fatal cases and 292 laboratory confirmations, were reported by the Ministry of Health (MoH) of Guinea and WHO as of July 2, 2014. Active surveillance continues in Conakry, Guéckédou, Macenta, Télimélé, Dubreka, Boffa, and Kouroussa districts.

In Sierra Leone, WHO and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 252 suspect and confirmed cases of EHF as of July 2, 2014. Of these 252, 211 cases have been laboratory confirmed and 101 were fatal. Districts reporting clinical EHF patients include Kailahun, Kenema, Kambia, Port Loko, Western, and Bo. Reports and investigations of suspect cases continue across the country. Laboratory testing is being conducted in Kenema city and Kailahun. The Government of Sierra Leone, WHO, Canada, and CDC have sent experts to aid in the response and investigation.

As of July 2, 2014, the Ministry of Health and Social Welfare of Liberia and WHO have reported 115 clinical cases of EHF, including 54 laboratory confirmations, and 75 fatal cases. Cases since May have been reported from Lofa, Montserado, and more recently, Margibi Counties. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 7 person team in Guinea assisting the respective MOHs and the WHO-led international response to this Ebola outbreak

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO 3 July 2014.

July 2, 2014

Outbreak Update

As of June 30, 2014, the total number of confirmed and suspect Ebola hemorrhagic fever (EHF) cases as stated by the Ministry of Health (MoH) of Guinea and WHO was 413, including 303 fatal cases and 293 laboratory confirmed cases. Active surveillance continues in Conakry, Guéckédou, Macenta, Télimélé, Dubreka, Boffa, and Kouroussa districts.

The World Health Organization (WHO) and the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 239 suspect and confirmed cases of EHF as of June 30, 2014. Of these 239, 199 cases have been laboratory confirmed and 99 were fatal. Districts reporting clinical EHF patients include Kailahun, Kenema, Kambia, Port Loko, Western, and for the first time, Bo. Reports and investigations of suspect cases continue across the country. Laboratory testing is being conducted in Kenema city and Kailahun. The Government of Sierra Leone, WHO, Canada, and CDC have sent experts to aid in the response and investigation.

As of June 30, 2014, the Ministry of Health and Social Welfare of Liberia and WHO have reported 107 overall clinical cases of EHF, including 52 laboratory confirmations, and 65 fatal cases. Cases have been reported from Lofa, Montserado, and more recently, Margibi Counties. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 6 person team in Guinea and one staff member in Sierra Leone assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO 1 July 2014.

June 2014

June 24, 2014

Outbreak Update

As of June 20, 2014, the total number of confirmed and suspect Ebola hemorrhagic fever (EHF) cases as stated by the Ministry of Health (MoH) of Guinea was 390, including 270 fatal cases and 260 laboratory confirmed cases. Active surveillance continues in Conakry, Guéckédou, Macenta, Télimélé, Dubreka, and Boffa districts.

The World Health Organization has stated that as of June 20, 2014, the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 158 clinical cases of EHF (including 147 laboratory confirmations, 34 of these being fatal cases). Districts reporting clinical EHF patients include Kailahun, Kenema, Kambia, Port Loko, and Western. Reports and investigations of suspect cases continue across the country. Laboratory testing is being conducted in Kenema city. The Government of Sierra Leone, WHO, and CDC have sent experts to aid in the response and investigation.

As of June 22, 2014, the Ministry of Health and Social Welfare of Liberia had reported 51 overall clinical cases of EHF, including 34 laboratory confirmations, and 34 fatal cases. All cases reported in June have been from Lofa and Montserado districts. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 4 person team in Guinea and a staff member in Sierra Leone assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO EPR 23 June 2014.

June 18, 2014

Outbreak Update

The Ministry of Health (MoH) of Guinea reported a total of 398 confirmed and suspect Ebola hemorrhagic fever (EHF) cases, including 264 fatal cases and 254 laboratory confirmed cases as of June 16, 2014. Active surveillance continues in Conakry, Guéckédou, Macenta, Télimélé, Dubreka, and Boffa districts.

According to the World Health Organization (WHO), on June 17, 2014, the Ministry of Health and Sanitation of Sierra Leone reported a cumulative total of 97 clinical cases of EHF (including 92 laboratory confirmations) and 49 fatal cases. Reports and investigations of suspect cases continue across the country. Laboratory testing is being conducted in Kenema city. Both Sierra Leone and WHO have sent experts to aid in the response and investigation.

As of June 16, 2014, the Ministry of Health and Social Welfare of Liberia had reported 33 overall clinical cases of EHF, including 18 laboratory confirmations, and 24 fatal cases, according to WHO. The 9 new cases and 5 new deaths reported between June 11 and 16, 2014 have been from Lofa and Montserado districts. Laboratory testing is being conducted in Monrovia.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 5 person team in Guinea assisting the respective MOHs and the WHO-led international response to this Ebola outbreak

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO 17 June 2014.

June 11, 2014

Outbreak Update

On June 10, 2014, The Ministry of Health (MoH) of Guinea reported 376 suspect and confirmed cases of Ebola hemorrhagic fever (EHF), including 241 fatal cases and 233 laboratory confirmed cases. New cases were reported in Gueckedou, Telimele, and Boffa districts and follow-up investigations continue in Conakry, Boke, and Dubreka districts in the west, and Macenta, and Kouroussa districts in the south (see map).

The Ministry of Health and Sanitation of Sierra Leone reported 117 suspect cases, 19 fatal cases, and 43 laboratory confirmed cases on June 9, 2014. Confirmed cases have been reported from the Kailahun district, near Gueckedou, Guinea, and for the first time in Kambia and Port Loko districts in northwest Sierra Leone. Reports of and investigations of suspect cases continue in Kailahun, Kenema, Kono, Bo, Moyamba , Kambia, Koinadugu, Port Loko, Tonkolili, Bombali, and Western area districts. Laboratory testing is being conducted in Kenema city. Sierra Leone and WHO have sent experts to aid in the response and investigation.

On June 7, 2014, the Ministry of Health and Social Welfare of Liberia reported 1 laboratory confirmed EHF case and 1 new death in the Foya District of Liberia. This is the first reported case since April 6, 2014.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, and the Ministry of Health and Social Welfare of Liberia.

June 10, 2014

Outbreak Update

The Ministry of Health (MoH) of Guinea reported 372 suspect and confirmed cases of Ebola hemorrhagic fever on June 8, 2014 (EHF). This includes 236 fatal cases and 219 laboratory confirmed cases. For the first time, the district Kouroussa reported 1 laboratory confirmed case. Reports of cases and follow-up investigations continue in the Conakry, Télimélé, Boffa, Boke, and Dubreka districts in the west, and the Guéckédou, Macenta, and now Kouroussa districts in the south (see map).

The Ministry of Health and Sanitation of Sierra Leone reported 8 new cases (2 confirmed) and one new death of EHF on June 6, 2014 bringing the total number of clinical EHF cases to 89. This includes 33 laboratory confirmed cases and 7 deaths. All confirmed cases have been reported from the Kailahun district, which neighbors the current EHF hotspot in Guekedou, Guinea. Investigations of suspect cases continue in Kailahun, Kenema, Koinadugu, Bo, Moyamba, Bombali, Western area urban, and Port Loko districts. Laboratory testing is being conducted in Kenema. Sierra Leone and WHO has sent experts to aid in the response and investigation.

On June 7, 2014, the Ministry of Health and Social Welfare of Liberia reported 1 laboratory confirmed EHF case and 1 new death in the Foya District of Liberia. This is the first reported case since April 6, 2014.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak.

Based on reports from the Ministry of Heath of Guinea, the Ministry of Health and Sanitation of Sierra Leone, the Ministry of Health and Social Welfare of Liberia, and WHO 7 June 2014.

June 5, 2014

Outbreak Update

As of June 3, 2014, Guinea's Ministry of Health was reporting 344 cumulative cases of Ebola hemorrhagic fever (EHF), including 215 deaths and 207 laboratory confirmed cases. Cases are currently being reported from the Conakry, Télimélé, Boffa, Boke, and Dubreka districts in the west, and the Guéckédou and Macenta districts in the south (see map).

The Ministry of Health and Sanitation of Sierra Leone reported on June 5, 2014 that 81 suspect cases are under investigation, 31 cases have been laboratory confirmed, and 7 deaths have been reported. Suspect cases are now being reported from eight districts including Kailahun, Kenema, Koinadugu, Bo, Moyamba, Bombali, Western area urban, and Port Loko. Laboratory testing is being conducted in Kenema. Sierra Leone and WHO has sent experts to aid in the response and investigation.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak.

Based on reports from the Ministry of Heath of Guinea and the Ministry of Health and Sanitation of Sierra Leone.

June 2, 2014

Outbreak Update

On May 30, the World Health Organization (WHO) reported the cumulative total of Ebola hemorrhagic fever (EHF) cases as reported by Guinea's Ministry of Health, to be 291, including 193 deaths and 172 laboratory confirmed cases. Cases are currently being reported from the Télimélé, Boffa, Boke, Dubreka, and Conakry districts in the west, and the Guékédou and Macenta districts in the south (see map).

In Sierra Leone, WHO stated on May 30, 2014 that 50 clinical cases of EHF have been reported, including 6 deaths and 14 laboratory confirmed cases. Suspect cases are now being reported from five districts including Kailahun, Kenema, Koinadugu, Bo, and Moyamba. Laboratory testing is being conducted in Kenema. Sierra Leone and WHO has sent experts to aid in the response and investigation.

The first suspect case since April 9th, 2014 was reported in the Foya District of Liberia on May 29, 2014. Investigations are ongoing to trace potential contacts for this case.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak.

Based the WHO update on 30 May 2014.

May 2014

May 28, 2014

Outbreak Update

The World Health Organization (WHO) reported on May 27, 2014, 14 new suspect cases of Ebola hemorrhagic fever (EHF) and 5 deaths occurring in western Guinea from May 23-27. For the first time, cases are being reported from Boffa, Boke, and Dubreka counties. Additional cases are still being reported in Télimélé, Guékédou, Macenta, and Conakry. The cumulative total of EHF cases as reported by Guinea’s Minisitry of Health, stands at 281 (163 laboratory confirmed) with 186 deaths.

In Sierra Leone, WHO states that 7 EHF cases have been laboratory confirmed with an additional 9 suspect cases and 5 community deaths under investigation. All suspect cases are reported to be from the Kailahun district of Sierra Leone which neighbors the current EHF hotspot in Guekedou, Guinea. Laboratory testing was conducted in Kenema, Sierra Leone and WHO has sent experts to aid in the response and investigation.

No cases have been reported in Liberia since April 9, 2014.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak.

Based the WHO update on 27 May, 2014.

May 27, 2014

Outbreak Update

On May 26, 2014, the World Health Organization announced that one case of Ebola hemorrhagic fever (EHF) had been laboratory confirmed in Sierra Leone; 4 additional community deaths are being investigated. All suspect cases are reported to be from the Kailahun district of Sierra Leone which neighbors the current EHF hotspot in Guekedou prefecture in Guinea and Lofa District in Liberia (see map).

Laboratory testing was conducted in Kenema, Sierra Leone and WHO has sent experts to aid in the response and investigation. CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak.

Based the WHO update on 26 May 2014.

May 23, 2014

Outbreak Update

The Ministry of Health (MoH) of Guinea’s reported a cumulative total of 258 suspect and confirmed cases of Ebola hemorrhagic fever (EHF), including 174 deaths as of May 21, 2014. Of these suspect cases, 146 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF). The number of health care workers reported among the suspect and confirmed cases remains 24, including 17 deaths. Other districts with reports of suspect and confirmed cases are Guékédou, Macenta, Kissidougou, Dabola, Djingaraye, and for the first time, Télimélé.

As of May 18, 2014, the World Health Organization (WHO) and the Ministry of Health and Social Welfare (MOHSW) of Liberia has reported no change to the 12 suspect and confirmed EHF cases (9 deaths). Samples from Mali and Sierra Leone have, thus far, been negative for Ebola virus though investigations and monitoring of reports of suspect cases is ongoing.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the MOHSW of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institute Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal, the European Consortium mobile laboratory, and the Metabiota supported laboratory in Kenema (Sierra Leone) and Monrovia (Liberia), and CDC Atlanta are some of the laboratories collaborating to test samples. CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 2 person team in Guinea assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports by the MoH of Guinea, the MOHSW of Liberia, and WHO update on 18 May 2014.

May 14, 2014

Outbreak Update

On May 10, 2014, the Ministry of Health (MoH) of Guinea’s reported 233 suspect and confirmed cases of Ebola hemorrhagic fever (EHF), including 157 deaths. Of these suspect cases, 129 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF). Districts reporting suspect and confirmed cases included Guekedou, Macenta, Kissidougou, Dabola, Djingaraye, and Conakry, the capital.

WHO reports that the Ministry of Health and Social Welfare (MOHSW) of Liberia announced the cumulative total of suspect and confirmed cases of EHF is 12 on May 10, 2014. Samples from Mali and Sierra Leone have, thus far, been negative for Ebola virus though investigations and monitoring of reports of suspect cases is ongoing.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in both Conakry and Gueckedou. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU) - Liberia, and Samaritan’s Purse (SP), Liberia, are aiding the MOHSW of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institute Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal, the European Consortium mobile laboratory, and the Metabiota supported laboratory in Kenema (Sierra Leone) and Monrovia (Liberia), and CDC Atlanta are collaborating in sample testing.

CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 3 person team in Guinea assisting MOH and the WHO-led international response to this Ebola outbreak.

Based on reports by the MoH of Guinea and WHO update May 13, 2014.

May 5, 2014

Outbreak Update

The Ministry of Health (MoH) of Guinea’s reported on May 3, 2014, a cumulative total of 231 suspect and confirmed cases of Ebola hemorrhagic fever (EHF), including 155 deaths. Of these suspect cases, 127 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF). The number of health care workers reported among the suspect and confirmed cases is 24, including 16 deaths. Other districts with reports of suspect and confirmed cases remain Guekedou, Macenta, Kissidougou, Dabola, and Djingaraye.

According to the World Health Organization (WHO), the Ministry of Health and Social Welfare (MOHSW) of Liberia reported no change to the 13 suspect and confirmed EHF cases (11 deaths) in Liberia as of May 2, 2014. Six (6) samples have tested positive for Ebola virus. Samples from Mali and Sierra Leone have, thus far, been negative for Ebola virus though investigations and monitoring of reports of suspect cases is ongoing.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the MOHSW of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institute Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal, the European Consortium mobile laboratory, and the Metabiota supported laboratory in Kenema (Sierra Leone) and Monrovia (Liberia), and CDC Atlanta are some of the laboratories collaborating to test samples. CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 7 person team in Guinea and a 2 person team in Liberia assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports by the MoH of Guinea, the MOHSW of Liberia, and WHO update 2 May 2014.

April 2014

April 30, 2014

Outbreak Update

On April 29, 2014, the Ministry of Health (MoH) of Guinea’s reported 221 suspect and confirmed cases of Ebola hemorrhagic fever (EHF), including 146 deaths. Of these suspect cases, 126 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF). The number of health care workers reported among the suspect and confirmed cases remains at 25, including 16 deaths. Other districts reporting suspect and confirmed cases remain Guekedou, Macenta, Kissidougou, Dabola, and Djingaraye.

The Ministry of Health and Social Welfare (MOHSW) of Liberia, together with CDC and WHO, reviewed suspect and confirmed EHF case definitions for Liberia. As of April 30, 2014, the newly revised number of suspect and confirmed cases of EHF in Liberia is 13. Six (6) samples have tested positive for Ebola virus. Samples from Mali and Sierra Leone have, thus far, been negative for Ebola virus though investigations and monitoring of reports of suspect cases is ongoing.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the MOHSW of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institute Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal, the European Consortium mobile laboratory, and the Metabiota supported laboratory in Kenema (Sierra Leone) and Monrovia (Liberia), and CDC Atlanta are some of the laboratories collaborating to test samples. CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 6 person team in Guinea and a 2 person team in Liberia assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on reports by the MoH of Guinea and WHO update 25 April 2014.

April 23, 2014

Outbreak Update

The Ministry of Health (MoH) of Guinea’s reported 208 suspect and confirmed cases of Ebola hemorrhagic fever (EHF), including 136 deaths, on April 20, 2014 according to the World Health Organization (WHO). Of these suspect cases, 112 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF). One additional health care worker has been reported among the suspect and confirmed cases bringing the total to 25, including 16 deaths. Other districts reporting suspect and confirmed cases remain Guekedou, Macenta, Kissidougou, Dabola, and Djingaraye.

WHO reports that the Ministry of Health and Social Welfare (MOHSW) of Liberia announced the cumulative total of suspect and confirmed cases of EHF is 34, including 11 deaths, on April 21, 2014. Six (6) samples have tested positive for Ebola virus. Samples from Mali and Sierra Leone have, thus far, been negative for Ebola virus though investigations and monitoring of reports of suspect cases is ongoing.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the MOHSW of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institute Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal, the European Consortium mobile laboratory, and the Metabiota supported laboratory in Kenema (Sierra Leone) and Monrovia (Liberia), and CDC Atlanta are some of the laboratories collaborating to test samples. CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has a 7 person team in Guinea and a 3 person team in Liberia assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on WHO update 22 April 2014.

April 21, 2014

Outbreak Update

The Ministry of Health (MoH) of Guinea reported on April 17, 2014, 203 suspect and confirmed cases of Ebola hemorrhagic fever (EHF), including 129 deaths, according to the World Health Organization (WHO). Of these suspect cases, 109 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF). The number of health care workers who have been reported among the suspect and confirmed cases is 24, including 15 deaths. Other districts reporting suspect and confirmed cases remain Guekedou, Macenta, Kissidougou, Dabola, and Djingaraye.

According to WHO, no update from the Ministry of Health and Social Welfare (MOHSW) of Liberia was reported as of April 17, 2014. The cumulative total of suspect and confirmed cases of EHF remains 27, with 13 deaths, as reported by UNICEF on April 16, 2014. Six (6) samples have tested positive for Ebola virus. Samples from Mali and Sierra Leone have, thus far, been negative for Ebola virus though investigations and monitoring on reports of suspect cases is ongoing.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the MOHSW of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institute Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal, the European Consortium mobile laboratory, and the Metabiota supported laboratory in Kenema (Sierra Leone) and Monrovia (Liberia), and CDC Atlanta are some of the laboratories collaborating to test samples. CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has an 10 person team in Guinea and a 3 person team in Liberia assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on UNICEF [144 KB, 3 pages] and WHO update 19 April 2014.

April 17, 2014

Outbreak Update

On April 16, 2014, the Ministry of Health (MoH) of Guinea reported 197 probable and suspect cases of Ebola hemorrhagic fever (EHF), including 122 deaths, according to the World Health Organization (WHO). Of these suspect cases, 101 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF). 24 health care workers have been reported among the suspect and confirmed cases, including 13 deaths. Other districts reporting suspect and confirmed cases remain Guekedou, Macenta, Kissidougou, Dabola, and Djingaraye.

According to WHO and the Ministry of Health and Social Welfare (MOHSW) of Liberia, the cumulative total of probable and suspect cases of EHF is 27, with 13 deaths as of April 16, 2014. Samples from Mali and Sierra Leone have, thus far, been negative for Ebola virus though investigations and monitoring on reports of suspect cases is ongoing.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the MOHSW of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institute Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal, the European Consortium mobile laboratory, and the Metabiota/Tulane University laboratory in Kenema, Sierra Leone, and CDC Atlanta are some of the laboratories collaborating to test samples. CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak. Currently CDC has and a 6 person team in Guinea and a 3 person team in Liberia assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on UNICEF [144 KB, 3 pages] and WHO update 16 April 2014.

April 10, 2014

Outbreak Update

According to the World Health Organization (WHO), the Ministry of Health (MoH) of Guinea reported 157 probable and suspect cases, including 101 deaths on April 10, 2014. Of these suspect cases, 66 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF). One additional health care worker with clinical symptoms has been reported since April 7, increasing the total to 15 health care workers. All cases reported in Conakry (20) have been laboratory confirmed. Other districts with confirmed and suspected cases remain Guekedou, Macenta, Kissidougou, Dabola, and Djingaraye.

UNICEF of Liberia reported on April 9, 2014, 22 probable and suspect cases of EHF, including 14 deaths and 5 laboratory-confirmed cases. Four of these confirmed cases were reported from Lofa County and 1 from Margibi County according to WHO. Other Counties in Liberia under further investigation now include Bong, Nimba, Montserrado, and for the first time, Grand Cape Mount County. Additional reports of suspect cases in Sierra Leone and Mali are under investigation.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the Ministry of Health of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institute Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal, the European Consortium mobile laboratory, and the Metabiota/Tulane University laboratory in Kenema, Sierra Leone, and CDC Atlanta are some of the laboratories collaborating to test samples. To date, 71 cases from Guinea and Liberia have been laboratory confirmed by PCR for Ebola virus. CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak.  Currently CDC has  and a 5 person team in Guinea and a 2 person team in Liberia assisting the respective MOHs and the WHO-led international response to this Ebola outbreak.

Based on Guinea’s MoH, Liberia’s MoHSW, UNICEF [150 KB, 4 pages] and the WHO update 10 April 2014.

April 7, 2014

Outbreak Update

The Ministry of Health (MoH) of Guinea reported on April 5, 2014, a total of 151 probable and suspect cases, including 95 deaths (case fatality ratio: 63%). Of these suspect cases, 52 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF), including 14 health care workers. 20 suspect cases have been reported in Conakry, the capitol; 16 of these have been laboratory confirmed.

According to the World Health Organization and Liberia’s Ministry of Health, 18 suspect cases of EHF have been reported, including 7 deaths (case fatality ratio: 31%) and 4 laboratory-confirmed cases. Counties in Liberia under further investigation now include Lofa, Bong, Nimba, Margibi, and Montserrado. Additional reports of suspect cases in Sierra Leone and Mali are under investigation.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the Ministry of Health of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institute Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal, the European Consortium mobile laboratory, and the Metabiota/Tulane University laboratory in Kenema, Sierra Leone, and CDC Atlanta are some of the laboratories collaborating to test samples. To date, 56 cases from Guinea and Liberia have been laboratory confirmed by PCR for Ebola virus. CDC is in regular communication with its international partners, WHO, and MSF regarding the outbreak and a 5 person CDC team is currently in Guinea assisting the Guinea MOH and the WHO-led international response to this Ebola outbreak.

Based on Guinea’s MoH Epidemiological Bulletin, Liberia’s MoH, and the WHO update 5 April 2014.

April 2, 2014

Outbreak Update

According to the World Health Organization (WHO), the Ministry of Health (MoH) of Guinea reported an increased total of 127 probable and suspect cases, including 83 deaths (case fatality ratio: 65%), as of April 1, 2014. Of these suspect cases, 35 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF), including 14 health care workers and 11 cases in Conakry, the capitol. Liberia has reported 8 suspect cases, which include 5 deaths and 2 laboratory-confirmed cases of EHF from persons with recent travel history to Guinea. Additional reports of suspect cases in Liberia and Sierra Leone are under investigation.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the Ministry of Health of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institut Pasteur in Lyon, France, and the Institut Pasteur in Dakar, Senegal are a few of the laboratories collaborating to test samples. To date, 37 cases from Guinea and Liberia have been laboratory confirmed by PCR for Ebola virus. CDC is in regular communication with its international partners WHO and MSF regarding the outbreak, and has sent a 5 person team to Guinea to assist Guinea MOH and WHO led international response to the Ebola outbreak.

Based on WHO update, 2 April 2014.

April 1, 2014

Outbreak Update

According to the World Health Organization (WHO), the Ministry of Health (MoH) of Guinea is reporting 122 probable and suspect cases, including 80 deaths (case fatality ratio: 65.6%), as of March 31, 2014. Of these suspect cases, 24 have been laboratory confirmed positive cases of Ebola hemorrhagic fever (EHF). For the first time, a suspect case of EHF has been reported from the Djingaraye district in Guinea. Liberia has reported 8 suspect cases with include 2 deaths and 2 laboratory-confirmed cases of EHF from persons with recent travel history to Guinea. Additional reports of suspect cases in Liberia and Sierra Leone are under investigation.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the Ministry of Health of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institut Pasteur in Lyon, France, and the Institut Pasteur in Dakar, Senegal are a few of the laboratories collaborating to test samples. To date, 26 cases from Guinea and Liberia have been laboratory confirmed by PCR for Ebola virus. CDC is in regular communication with its international partners WHO and MSF regarding the outbreak, and has sent a 5 person team to Guinea to assist Guinea MOH and WHO led international response to the Ebola outbreak.

Based on WHO update, 1 April 2014.

March 2014

March 31, 2014

Outbreak Update

According to the World Health Organization (WHO), the Ministry of Health (MoH) of Guinea increased the number of suspected and confirmed cases to 112, as of March 30, 2014. This includes 70 deaths (case fatality ratio: 62.5%) and 24 laboratory confirmed cases of Ebola hemorrhagic fever (EHF).  Eleven confirmed cases and 4 new suspected cases have been reported in the capital of Conakry. For the first time, a suspected case has been reported from the Dabola district in Guinea and laboratory tests have confirmed 2 positive cases of EHF in Liberia from persons with recent travel history to Guinea. Additional reports of suspect cases in Liberia and Sierra Leone are under investigation.

Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. In Liberia, several international organizations including the International Red Cross (IRC), Pentecostal Mission Unlimited (PMU)-Liberia, and Samaritan’s Purse (SP) Liberia are aiding the Ministry of Health of Liberia by supporting awareness campaigns and providing personal protective equipment (PPE) for healthcare workers. The Institut Pasteur in Lyon, France, and the Institut Pasteur in Dakar, Senegal are a few of the laboratories collaborating to test samples. To date, 26 cases from Guinea and Liberia have been laboratory confirmed by PCR for Ebola virus. CDC is in regular communication with its international partners WHO and MSF regarding the outbreak.  CDC has sent a 5 person team to Guinea to assist Guinea MOH and WHO led international response to the Ebola outbreak.

Based on Based on WHO update, March 30, 2014 – Guinea and March 30, 2014 - Liberia.

March 27, 2014

Outbreak Update

According to the World Health Organization (WHO), the Ministry of Health (MoH) of Guinea has reported 4 laboratory confirmed cases of Ebola hemorrhagic fever (EHF) in the capital of Conakry, with a fifth suspected case without laboratory confirmation. Suspected and confirmed cases of EHF have also been reported in three southeastern districts of Guinea: Guekedou, Macenta, and Kissidougou. As of March 27, 2014 a total of 103 suspected cases, including 66 deaths (case fatality ratio: 64%), have been reported in Guinea. Reports of suspected cases in neighboring countries are being investigated: Liberia reported to the WHO 8 suspected cases, including 6 deaths, in individuals with recent travel history to Guinea. Sierra Leone has reported 6 suspected cases, including 5 deaths. Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. The Institut Pasteur in Lyon, France, the Institut Pasteur in Dakar, Senegal and the Bernhard-Nocht Institute of Tropical Medicine in Hamburg, Germany are a few of the laboratories collaborating to test samples. To date, 15 cases have been laboratory confirmed by PCR for Ebola virus. CDC is in regular communication with its international partners WHO and MSF regarding the outbreak, to identify areas where CDC subject matter experts can contribute to the response.

Based on WHO update, March 27, 2014.

March 26, 2014

Outbreak Update

According to the World Health Organization (WHO), the Ministry of Health (MoH) of Guinea has reported an outbreak of Ebola hemorrhagic fever in three southeastern districts: Guekedou, Macenta, and Kissidougou. Reports of suspected cases in the neighboring countries of Liberia and Sierra Leone are being investigated. In Guinea, a total of 86 suspected cases, including 60 deaths (case fatality ratio: 69.7%), had been reported as of March 25, 2014. Laboratory results from the Pasteur Institute in Lyon, France confirm Zaire ebolavirus as the causative agent. Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. CDC is in regular communication with its international partners WHO and MSF regarding the outbreak, to identify areas where CDC subject matter experts can contribute to the response.

March 25, 2014 - Initial Announcement

Outbreak Update

According to the World Health Organization (WHO), the Ministry of Health (MoH) of Guinea has reported an outbreak of Ebola hemorrhagic fever in four southeastern districts: Guekedou, Macenta, Nzerekore and Kissidougou. Reports of suspected cases in the neighboring countries of Liberia and Sierra Leone are being investigated. In Guinea, a total of 86 suspected cases, including 59 deaths (case fatality ratio: 68.5%), had been reported as of March 24, 2014. Preliminary results from the Pasteur Institute in Lyon, France suggest Zaire ebolavirus as the causative agent. Médecins sans Frontières (MSF/Doctors without Borders) is helping the Ministry of Health of Guinea in establishing Ebola treatment centers in the epicenter of the outbreak. CDC is in regular communication with its international partners WHO and MSF regarding the outbreak, to identify areas where CDC subject matter experts can contribute to the response.

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