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Multistate Outbreak of Human Salmonella Newport Infections Linked to Raw Alfalfa Sprouts (Final Update)

Posted June 29, 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 Newport, United States, by State, as of 06/24/10 at 11:00 pm EDT (n=44)

A map of the United States showing the number of people infected with an outbreak strain of Salmonella by state.

As of 11:00 PM EDT on June 24, 2010, a total of 44 individuals infected with a matching strain of Salmonella Newport have been reported from 11 states since March 1, 2010. The number of ill people identified in each state with this strain is as follows: AZ (4), CA (19), CO (1), ID (6), IL (1), MO (2), NM (2), NV (4), OR (2), PA (1), and WI (2). Among those for whom information is available about when symptoms started, illnesses began between March 1, 2010 and June 1, 2010. Case-patients range in age from <1 to 85 years old, and the median age is 38 years. Sixty-eight percent of patients are female. Among the 34 patients with available hospitalization information, 7 (19%) were hospitalized. No deaths have been reported.

« Read the full Outbreak Investigation

Previous Case Count Maps

Case Count Map: June 3, 2010

Persons Infected with the Outbreak Strain of Salmonella Newport, United States, by State, as of 06/02/10 at 11:00 pm EDT (n=35)

A map of the United States showing the number of people infected with an outbreak strain of Salmonella by state as of June 2, 2010.

As of 11:00 PM EDT on June 2, 2010, a total of 35 individuals infected with a matching strain of Salmonella Newport have been reported from 11 states since March 1, 2010. The number of ill people identified in each state with this strain is as follows: AZ (2), CA (17), CO (1), ID (5), IL (1), MO (1), NM (1), NV (2), OR (2), PA (1), and WI (2). Among those for whom information is available about when symptoms started, illnesses began between March 1, 2010 and May 16, 2010. Case-patients range in age from <1 to 75 years old, and the median age is 36 years. Sixty-six percent of patients are female. Among the 30 patients with available hospitalization information, 7 (23%) were hospitalized. No deaths have been reported.

Case Count Map: May 26, 2010

Persons Infected with the Outbreak Strain of Salmonella Newport, United States, by State, as of 05/26/10 at 11:00 am EDT (n=28)

A map of the United States showing the number of people infected with an outbreak strain of Salmonella by state as of May 26, 2010.

As of 11:00 AM EDT on May 26, 2010, a total of 28 individuals infected with a matching strain of Salmonella Newport have been reported from 10 states since March 1, 2010. The number of ill people identified in each state with this strain is as follows: AZ (2), CA (14), CO (1), ID (3), IL (1), MO (1), NM (1), NV (2), OR (1), and WI (2). Among those for whom information is available about when symptoms started, illnesses began between March 1, 2010 and May 7, 2010. Case-patients range in age from < 1 to 75 years old, and the median age is 32 years. Sixty-four percent of patients are female. Among the 20 patients with available hospitalization information, 6 (30%) were hospitalized. No deaths have been reported.

Case Count Map: May 21, 2010

Persons Infected with the Outbreak Strain of Salmonella Newport, United States, by State, as of 05/21/10 at 9:00 am EDT (n=22)

A map of the United States showing the number of people infected with an outbreak strain of Salmonella by state as of May 21,2010.

As of 9:00 AM EDT on May 21, 2010, a total of 22 individuals infected with a matching strain of Salmonella Newport have been reported from 10 states since March 1, 2010. The number of ill people identified in each state with this strain is as follows: AZ (1), CA (11), CO (1), ID (1), IL (1), MO (1), NM (1), NV (2), OR (1), and WI (2). Among those for whom information is available about when symptoms started, illnesses began between March 1, 2010 and May 2, 2010. Case-patients range in age from <1 to 57 years old, and the median age is 26 years. Fifty-five percent of patients are female. Among the 20 patients with available hospitalization information, 6 (30%) were hospitalized. No deaths have been reported.

 
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