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Multistate Outbreak of Human Salmonella Typhimurium Infections Associated with Contact with Water Frogs (Final Update)

Posted January 7, 2010

This outbreak appears to be over. However, Salmonella is an important cause of human illness in the United States. More information about Salmonella, and steps people can take to reduce their risk of infection, can be found on the CDC Salmonella Web Page.

Case Count Map

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of 12/30/09 at 9:00 pm EST

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of December 30, 2009.

New information in the investigation indicates the outbreak likely began in April, which is earlier than previously reported. Investigations are still ongoing to see if the outbreak may have been occurring prior to April.

As of 9:00pm EST on December 30, 2009, 85 individuals infected with the outbreak strain of Salmonella Typhimurium have been reported from 31 states. The number of ill persons identified in each state is as follows: Alabama (1), Arizona (1), California (5), Colorado (4), Florida (1), Georgia (1), Idaho (1), Illinois (5), Indiana (1), Kentucky (1), Louisiana (1), Massachusetts (3), Maryland (3), Michigan (4), Minnesota (1), Missouri (4), Mississippi (1), Nebraska (1), New Jersey (2), New Mexico (1), New York (2), Nevada (1), Ohio (2), Pennsylvania (4), South Dakota (3), Tennessee (2), Texas (4), Utah (14), Virginia (3), Washington (7) and Wisconsin (1).

Among the persons with reported dates available, illnesses began between May 24 and November 30, 2009. Infected individuals range in age from < 1 year old to 54 years old. Seventy-nine percent (79%) of patients are younger than 10 years old and the median age is 5 years. Forty-eight percent (48%) of patients are female. Among the 45 patients with available information, 16 (34%) were hospitalized. No deaths have been reported.

« Read the full Outbreak Investigation

Previous Case Count Maps

Case Count Map: December 21, 2009

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of 12/21/09 at 9:00 pm EST

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of December 21, 2009.

New information in the investigation indicates the outbreak likely began in April, which is earlier than previously reported. An additional 26 ill persons infected with the outbreak strain between April and July have been identified and are now included in the overall number of reported individuals infected.Only four new recent illnesses have been reported since the previous web update on December 16. Investigations are still ongoing to see if the outbreak may have been occurring prior to April.

As of 9:00pm EST on December 21, 2009, 83 individuals infected with the outbreak strain of Salmonella Typhimurium have been reported from 31 states. The number of ill persons identified in each state is as follows: Alabama (1), Arizona (1), California (4), Colorado (4), Florida (1), Georgia (1), Idaho (1), Illinois (5), Indiana (1), Kentucky (1), Louisiana (1), Massachusetts (3), Maryland (2), Michigan (4), Minnesota (1), Missouri (4), Mississippi (1), Nebraska (1), New Jersey (2), New Mexico (1), New York (2), Nevada (1), Ohio (2), Pennsylvania (4), South Dakota (3), Tennessee (3), Texas (4), Utah (13), Virginia (3), Washington (7) and Wisconsin (1).

Among the persons with reported dates available, illnesses began between May 24 and November 16, 2009. Infected individuals range in age from < 1 year old to 54 years old. Eighty percent (80%) of patients are younger than 10 years old and the median age is 4 years. Forty-nine percent (49%) of patients are female. Among the 45 patients with available information, 16 (36%) were hospitalized. No deaths have been reported.

Case Count Map: December 16, 2009

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of December 16, 2009

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of December 16, 2009

New information in the investigation indicates the outbreak likely began in April, which is earlier than previously reported. An additional 26 ill persons infected with the outbreak strain between April and July have been identified and are now included in the overall number of reported individuals infected.Only four new recent illnesses have been reported since the previous web update on December 10. Investigations are still ongoing to see if the outbreak may have been occurring prior to April.

As of 11:59pm EST on December 15, 2009, 80 individuals infected with the outbreak strain of Salmonella Typhimurium have been reported from 28 states. The number of ill persons identified in each state is as follows: Arizona (1), California (4), Colorado (4), Florida (1), Georgia (1), Idaho (1), Illinois (6), Kentucky (1), Louisiana (2), Massachusetts (3), Maryland (2), Michigan (4), Minnesota (1), Missouri (4), Mississippi (1), Nebraska (1), New Jersey (2), New Mexico (1), New York (2), Ohio (2), Pennsylvania (4), South Dakota (3), Tennessee (3), Texas (3), Utah (13), Virginia (2), Washington (7) and Wisconsin (1).

Among the persons with reported dates available, illnesses began between April 3, 2009 and November 21, 2009. Infected individuals range in age from <1 year old to 54 years old. Eighty percent (80%) of patients are younger than 10 years old and the median age is 4 years. Forty-nine percent (49%) of patients are female. Among the 44 patients with available information, 17 (39%) were hospitalized. No deaths have been reported.

Case Count Map: December 10, 2009

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of December 10, 2009

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of December 10, 2009

As of 11:59pm EST on December 9, 2009, 50 individuals infected with the outbreak strain of Salmonella Typhimurium have been reported from 25 states. The number of ill persons identified in each state is as follows: Arizona (1), California (3), Colorado (2), Florida (1), Georgia (1), Idaho (1), Illinois (5), Kentucky (1), Louisiana (1), Massachusetts (2), Maryland (2), Michigan (3), Minnesota (1), Missouri (2), Mississippi (1), New Jersey (2), New Mexico (1), New York (1), Ohio (2), Pennsylvania (3), Tennessee (2), Texas (3), Utah (6), Virginia (1), and Washington (2).

Among the persons with reported dates available, illnesses began between June 24, 2009 and November 21, 2009. Infected individuals range in age from <1 year old to 54 years old. Seventy-eight percent (78%) of patients are younger than 10 years old and the median age is 4 years. Fifty-four percent (54%) of patients are female. Among the 24 patients with available information, 6 (25%) were hospitalized. No deaths have been reported.

Case Count Map: December 7, 2009

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of December 7, 2009

Persons Infected with the Outbreak Strain of Salmonella Typhimurium, United States, by State, as of December 7, 2009

As of 12pm EST on December 7, 2009, 48 individuals infected with the outbreak strain of Salmonella Typhimurium have been reported from 25 states. The number of ill persons identified in each state is as follows: Arizona (1), California (2), Colorado (2), Florida (1), Georgia (1), Idaho (1), Illinois (5), Kentucky (1), Louisiana (1), Massachusetts (2), Maryland (2), Michigan (3), Minnesota (1), Missouri (2), Mississippi (1), New Jersey (2), New Mexico (1), New York (1), Ohio (2), Pennsylvania (3), Tennessee (2), Texas (3), Utah (6), Virginia (1), and Washington (1).

Among the persons with reported dates available, illnesses began between June 24, 2009 and November 14, 2009. Infected individuals range in age from < 1 year old to 54 years old. Seventy-seven percent (77%) of patients are younger than 10 years old and the median age is 4 years. Fifty-five percent (55%) of patients are female. No deaths have been reported.

 
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