Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

Epi Curves

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

Posted October 26, 2012 3:30 PM ET

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.

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.

Final Epi Curve

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

Final Epi Curve: 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.

Previous Epi Curves

August 16, 2012

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

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

*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.

July 11, 2012

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

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

*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.  

June 5, 2012

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

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

*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.

May 25, 2012

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

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

*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.

Top