Timeline of Reported Cases

Posted on March 19, 2020 at 3:30 PM ET

People infected with the outbreak strain of E. coli O103, by date of illness onset*

Epi curve of people infected with the outbreak strain of E. coli, by date of illness onset, as of March 18, 2020

*n=39 for whom information was reported as of March 17, 2020.

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 3 to 4 weeks.

Previous Timelines

People infected with the outbreak strain of E. coli O103, by date of illness onset*

Epi curve of people infected with the outbreak strain of E. coli, by date of illness onset, as of February 25, 2020

*n=14 for whom information was reported as of February 25, 2020. 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 3 to 4 weeks.