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2014 Ebola Outbreak in West Africa


Since March 2014, West Africa has experienced the largest outbreak of Ebola in history, with multiple countries affected.

In response to the outbreak, CDC activated its Emergency Operations Center to coordinate technical assistance and control activities with other U.S. government agencies, the World Health Organization, and other domestic and international partners. CDC also deployed teams of public health experts to West Africa. Widespread transmission of Ebola in West Africa has been controlled, although additional cases may continue to occur sporadically. However, because of ongoing surveillance and strengthened response capacities, the affected countries now have the experience and tools to rapidly identify any additional cases and to limit transmission.

March 31, 2016

Outbreak Update

Previous Outbreak Updates

March 29, 2016

Outbreak Update

March 24, 2016

Outbreak Update
  • On March 16, Guinean health authorities alerted WHO and partners to 3 probable deaths from Ebola and 2 suspected cases of Ebola, all from the same family. The following day, the 2 suspected cases tested positive for Ebola. A high-risk contact has also died and since tested positive for Ebola.  

March 17, 2016

Outbreak Update
  • On March 17, 2016, Sierra Leone marked the end of its recent flare-up of Ebola, after 42 days had passed since the last person confirmed to have Ebola tested negative for a second time.

Communication Resources

Case Counts*

As of April 13, 2016
(Updated April 13, 2016)

Total Cases (Suspected, Probable, and Confirmed): 28,652
Laboratory-Confirmed Cases: 15,261
Total Deaths: 11,325

*Case counts updated in conjunction with the World Health Organization updates and are based on information reported by the Ministries of Health.

Detailed Case Counts

Previous Case Counts