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Multistate Outbreak of Human Salmonella Infections Linked to Live Poultry in Backyard Flocks (Final Update)

Posted October 26, 2012 3:30 PM ET

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 and the CDC Vital Signs Web Page.

Current 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.

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset

*n=191 for whom information was reported as of October 23, 2012. Some illness onset dates have been estimated from other reported information.

« Read the full Outbreak Investigation

Previous Epi Curves

Epi Curve: August 16, 2012

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset as of August 16, 2012

*n=158 for whom information was reported as of August 16, 2012. Some illness onset dates have been estimated from other reported information. Illnesses that occurred after July 23, 2012 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks.

Epi Curve: July 11, 2012

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset as of July 11, 2012

*n=141 for whom information was reported as of July 11, 2012. Some illness onset dates have been estimated from other reported information. Illnesses that occurred after June 17, 2012 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks. 

Epi Curve: June 5, 2012

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset as of June 5, 2012

*n=121 for whom information was reported as of June 5, 2012. Illnesses that occurred after May 14, 2012 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks.

Epi Curve: May 25, 2012

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Infantis, Newport, and Lille, by date of illness onset as of May 25, 2012

*n=93 for whom information was reported as of May 25, 2012. Illnesses that occurred after May 6, 2012 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks.

 
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