The CDC, several states, the U.S. Food and Drug Administration, and the U.S. Department of Agriculture’s Food Safety and Inspection Service are investigating a multistate outbreak of Shiga toxin-producing E. coli O157:H7 infections. This investigation includes E. coli O157:H7 infections recently reported by the New Jersey Department of Health.  Illnesses reported by investigators in New Jersey also included ill people who had a diagnostic test showing they were infected with E. coli bacteria. Laboratory testing is ongoing to link their illnesses to the outbreak using DNA fingerprinting. Some people may not be included in CDC’s case count because no bacterial isolates are available for the DNA fingerprinting needed to link them to the outbreak.

As of April 9, 2018, 17 people infected with the outbreak strain of E. coli O157:H7 have been reported from 7 states. The 7 states are : Connecticut (2), Idaho (4), Missouri (1), New Jersey (6), Ohio (1), Pennsylvania (2), and Washington (1). Illnesses started on dates ranging from March 22, 2018 to March 31, 2018. Ill people range in age from 12 to 84 years, with a median age of 41. Among ill people, 65% are female. Six ill people have been hospitalized, including one person who developed hemolytic uremic syndrome, a type of kidney failure. No deaths have been reported.

The investigation is still ongoing, and a specific food item, grocery store, or restaurant chain has not been identified as the source of infections.  State and local public health officials are interviewing ill people to determine what they ate and other exposures in the week before their illness started.