2013 Salmonella Outbreak Linked to Foster Farms Brand Chicken – Epi Curves

Multistate Outbreak of Multidrug-Resistant Salmonella Heidelberg Infections Linked to Foster Farms Brand Chicken (Final Update)

Posted July 31, 2014 4:00 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.

Final 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 Heidelberg, by week of illness onset*

7-31-2014 Epi Curve: Persons infected with the outbreak strain of Salmonella Heidelberg, by date of illness onset

*n=633 for whom information was reported as of July 24, 2014

Illnesses that began after June 2, 2014, might not be reported yet 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 4 weeks.