As of May 1, 2018, 121 people infected with the outbreak strain of E. coli O157:H7 have been reported from 25 states. Illnesses started on dates ranging from March 13, 2018 to April 21, 2018. Ill people range in age from 1 to 88 years, with a median age of 29. 63 percent of ill people are female. Of 102 people with information available, 52 (51percent) have been hospitalized, including 14 people who developed hemolytic uremic syndrome, a type of kidney failure. 1 death was reported from California.

State / Ill People
Alaska / 8
Arizona / 8
California / 24
Colorado / 2
Connecticut / 2
Georgia / 4
Idaho / 11
Illinois / 1
Kentucky / 1
Louisiana / 1
Massachusetts / 2
Michigan / 4
Mississippi / 1
Missouri / 1
Montana / 8
New Jersey / 7
New York / 2
Ohio / 3
Pennsylvania / 20
South Dakota / 1
Tennessee / 1
Utah / 1
Virginia / 1
Washington / 6
Wisconsin / 1
Total / 121

Illnesses that occurred after April 11, 2018, might not yet be reported due to the time it takes between when a person becomes ill with E. coli and when the illness is reported. This takes an average of 2 to 3 weeks.