Case Count Maps

Multistate Outbreak of Shiga toxin-producing Escherichia coli O157:H7 Infections Linked to Ready-to-Eat Salads (Final Update)

Posted December 11, 2013 3:00 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 Web Page.


Final Case Count Map

Persons infected with the outbreak strain of E. coli O157:H7, by state*

Final Case Count Map: Persons infected with the outbreak strain of E. coli O157:H7, by state

*n=33 for whom information was reported as of December 9, 2013

A total of 33 individuals infected with the outbreak strain of STEC O157:H7 were reported from four states. The number of ill persons identified in each state was as follows: Arizona (1), California (28), Texas (1), and Washington (3).

Previous Case Count Maps

Persons infected with the outbreak strain of E. coli O157:H7, by state*

November 21, 2013 Case Count Map: Persons infected with the outbreak strain of E. coli O157:H7, by state

*n=32 for whom information was reported as of November 19, 2013

A total of 32 individuals infected with the outbreak strain of STEC O157:H7 have been reported from four states. The number of ill persons identified in each state is as follows: Arizona (1), California (27), Texas (1), and Washington (3).

Persons infected with the outbreak strain of E. coli O157:H7, by state*

November 12, 2013 Case Count Map: Persons infected with the outbreak strain of E. coli O157:H7, by state

*n=26 for whom information was reported as of November 10, 2013

A total of 26 individuals infected with the outbreak strain of STEC O157:H7 have been reported from three states. The number of ill persons identified in each state is as follows: Arizona (1), California (22), and Washington (3).