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Epi Curves

Multistate Outbreak of Shiga toxin-producing Escherichia coli Infections Linked to Flour (Final Update)

Posted September 29, 2016 12:45PM EST

Although the outbreak investigation is over, illnesses are expected to continue for some time. The recalled flour and flour products have long shelf lives and may still be in people’s homes. Consumers who don’t know about the recalls could continue to eat the products and get sick. A list of the recalled products and how to identify them is available on the Advice to Consumers page.

People infected with the outbreak strains of E. coli O121 or O26, by date of illness onset*

Epi curve: People infected with the outbreak strain of E. coli O121 & O26, by date of illness onset, September 28, 2016

*n=63 for whom information was available as of September 28, 2016.

Previous Epi Curves

July 25, 2016

People infected with the outbreak strains of E. coli O121 or O26, by date of illness onset*

Epi curve: People infected with the outbreak strain of E. coli O121 & O26, by date of illness onset

*n=46 for whom information was reported as of July 25, 2016. Some illness onset dates have been estimated from other reported information.

Illnesses that occurred after June 29, 2016 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported to CDC. This takes an average of 2 to 3 weeks.

June 28, 2016

People infected with the outbreak strain of E. coli O121, by date of illness onset*

People infected with the outbreak strain of E. coli O121, by date of illness onset(n=42)*

*n=42 for whom information was reported as of June 28, 2016. Some illness onset dates have been estimated from other reported information. Illnesses that occurred after June 2, 2016, 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 2, 2016

People infected with the outbreak strain of E. coli O121, by date of illness onset*

*n=38 for whom information was reported as of May 31, 2016. Some illness onset dates have been estimated from other reported information. Illnesses that occurred after May 5, 2016, 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.

Read the full Outbreak Investigation

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