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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.

Epi Curve

This outbreak can be visually described with a chart showing the number of persons who became ill each day. This chart is called an epi curve. Please see the Timeline for Reporting of Salmonella Cases for more details on the reporting process.

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=83 for whom information was reported as of 12/30/09 at 9:00 pm EST)*

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=81 for whom information was reported as of December 30, 2009)

* Some illness onset dates have been estimated from other reported information. (Estimated onset dates range 4/9 – 12/11; Reported onset dates (n=48) range 5/24 – 11/30)

« Read the full Outbreak Investigation

Previous Epi Curves

Epi Curve: December 21, 2009

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=81 for whom information was reported as of 12/21/09 at 9:00 pm EST

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=81 for whom information was reported as of December 21, 2009)

*Some illness onset dates have been estimated from other reported information.

Epi Curve: December 16, 2009

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=49 for whom information was reported as of 12/15/09 at 11:59 pm EST*

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=48 for whom information was reported as of 12/15/09)

*Some illness onset dates have been estimated from other reported information: for all 79 cases the date of illness onsets range from 4/3 - 11/21 (actual onset (n=37) range 5/24 - 11/16).

Epi Curve: December 10, 2009

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=49 for whom information was reported as of 12/9/09 at 11:59 pm EST*

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=48 for whom information was reported as of 12/9/09)

*Some illness onset dates have been estimated from other reported information: for all 49 cases the date of illness onsets range from 6/24 – 11/21 (actual onset (n=23) range 6/24 – 11/16.

Epi Curve: December 7, 2009

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=48 for whom information was reported as of 12/7/09)*

Infections with the outbreak strain of Salmonella Typhimurium, by week of illness onset (n=48 for whom information was reported as of 12/7/09)

* Some illness onset dates have been estimated from other reported information: for all 48 cases the date of illness onsets range from 6/24 – 11/14 (actual onset (n=18) range 6/24 – 11/7).

 
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