Timeline of Reported Cases

Final Update

Posted on January 15, 2020 at 3:00 PM ET

This outbreak appears to be over. E. coli is an important cause of illness in the United States. Find more information about steps you can take to reduce your risk of infection on the E. coli and Food Safety web page.

People infected with the outbreak strain of E. coli O157:H7, by date of illness onset*

Epi curve of people infected with the outbreak strain of E. coli, by date of illness onset, as of January 10, 2020.

*n=10 for whom information was reported as of January 15, 2020.

Previous Timelines

People infected with the outbreak strain of E. coli O157:H7, by date of illness onset*

Epi curve of people infected with the outbreak strain of E. coli, by date of illness onset, as of December 9, 2019

*n=8 for whom information was reported as of December 9, 2019. Some illness onset dates have been estimated from other reported information.

Illnesses 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 4 weeks.

Read the full Food Safety Alert

Page last reviewed: January 15, 2020

Content source: Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Division of Foodborne, Waterborne, and Environmental Diseases (DFWED)