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

Posted August 1, 2014 2:15 PM ET

This particular outbreak appears to be over. However, E. coli is still an important cause of human illness in the United States. More information about E. coli, and steps people can take to reduce their risk of infection, can be found on the CDC E. coli General Information web page.

The outbreak can be visually described with a chart showing the number of people who became ill each day. Please see the Timeline for Reporting Cases of E. coli O157 Infections for more details.

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

July 31, 2014: Epi Curve of Persons infected with the outbreak strain of E. coli O121, by date of illness onset

*n=19 for whom information was reported as of July 31, 2014. Some illness onset dates have been estimated from other reported information.

June 27, 2014

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

June 27, 2014: Epi Curve of Persons infected with the outbreak strain of E. coli O121, by date of illness onset

*n=18 for whom information was reported as of June 27, 2014. Some illness onset dates have been estimated from other reported information.

Illnesses that occurred after June 4, 2014 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 10, 2014

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

June 9, 2014: Epi Curve of Persons infected with the outbreak strain of <em>E. coli</em> O121, by date of illness onset

*n=17 for whom information was reported as of June 9, 2014.

Some illness onset dates have been estimated from other reported information. Illnesses that occurred after May 17, 2014 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 26, 2014

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

May 21, 2014: Epi Curve of Persons infected with the outbreak strain of E. coli O121, by date of illness onset

*n=9 for whom information was reported as of May 21, 2014.

Some illness onset dates have been estimated from other reported information. Illnesses that occurred after April 30, 2014 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

Related Links

Top