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Multistate Outbreak of Human Salmonella Chester Infections

Posted September 9, 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 Chester, United States, by State, as of August 27, 2010 at 9:00 am EST (n=44)

Outbreak of Salmonella Chester Infections (Map) - August 27, 2010

As of 9:00 AM EDT on August 27, 2010, a total of 44 individuals infected with a matching strain of Salmonella Chester have been reported from 18 states since April 11, 2010. The number of ill people identified in each state with this strain is as follows: AK (1), CA (5), CO (2), GA (8), IL (1), KY (1), MA (2), MN (2), MO (1), NC (1), OK (1), OR (2), SC (2), TN (1), TX (3), UT (3), VA (4), and WA (4). Among those for whom information is available about when symptoms started, illnesses began between April 4, 2010 and June 16, 2010. Case-patients ranged in age from <1 to 88 years old, and the median age was 36 years. Fifty-four percent of patients were female. Among the 43 patients with available hospitalization information, 16 (37%) were hospitalized. No deaths were reported.

« Read the full Outbreak Investigation

Previous Case Count Maps

Case Count Map: June 25, 2010

Persons Infected with the Outbreak Strain of Salmonella Chester, United States, by State, as of June 25, 2010 at 9:00 am EST (n=37)

Outbreak of Salmonella Chester Infections (Map) - June 25, 2010

As of 9:00 AM EDT on June 25, 2010, a total of 37 individuals infected with a matching strain of Salmonella Chester have been reported from 18 states since April 11, 2010. The number of ill people identified in each state with this strain is as follows: AK (1), CA (5), CO (2), GA (7), IL (1), KY (1), MA (2), MN (2), MO (1), NC (1), OK (1), OR (2), SC (2), TN (1), TX (1), UT (2), VA (4), and WA (1). Among those for whom information is available about when symptoms started, illnesses began between April 5, 2010 and June 3, 2010. Case-patients range in age from <1 to 88 years old, and the median age is 36 years. Fifty-five percent of patients are female. Among the 19 patients with available hospitalization information, 7 (37%) were hospitalized. No deaths have been reported.

Case Count Map: June 18, 2010

Persons Infected with the Outbreak Strain of Salmonella Chester, United States, by State, as of June 18, 2010 at 9:00 am EST (n=30)

Outbreak of Salmonella Chester Infections (Map) - June 18, 2010

As of 9:00 AM EDT on June 18, 2010, a total of 30 individuals infected with a matching strain of Salmonella Chester have been reported from 15 states since April 11, 2010. The number of ill people identified in each state with this strain is as follows: CA (4), CO (2), GA (6), IL (1), KY (1), MA (2), MN (2), MO (1), NC (1), OK (1), OR (2), SC (2), TN (1), UT (1), and VA (3). Among those for whom information is available about when symptoms started, illnesses began between April 5, 2010 and May 29, 2010. Case-patients range in age from <1 to 88 years old, and the median age is 37 years. Fifty-four percent of patients are female. Among the 15 patients with available hospitalization information, 6 (40%) were hospitalized. No deaths have been reported.

 
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