CDC has updated its information on the multistate outbreak of E. coli O157:H7 infections linked to romaine lettuce to add 31 more people from 10 states identified as infected since its last update on April 18. Additionally, three more states reported ill people: Colorado, Georgia, and South Dakota, and illnesses that occurred in the last two to three weeks might not yet be reported because of the time between when a person becomes ill with E. coli and when the illness is reported to CDC. The most recent illness started on April 12, 2018.
Thus far, 84 infected people have been reported from 19 states, 42 of which have been hospitalized, including nine who have developed a type of kidney failure called hemolytic uremic syndrome. No deaths have been reported.
CDC information collected to date indicates that romaine lettuce from the Yuma, Ariz., growing region could be contaminated, but the investigation has not identified a common grower, supplier, distributor, or brand of romaine lettuce.
From this information, CDC is advising consumers to not eat or buy romaine lettuce unless they can confirm it is not from the Yuma, Arizona, growing region and is advising restaurants and retailers to not serve or sell any romaine lettuce from that area. The advice includes whole heads and hearts of romaine, chopped romaine, and salads and salad mixes that do or may contain romaine lettuce (e.g., if it is unknown, the mix should not be eaten, served or sold). Restaurants and retailers also should ask their suppliers about the source of their romaine lettuce.
State and local health officials are continuing to interview ill people to ask about the foods they ate and other exposures before they became ill. Sixty-four (96%) of 67 people interviewed reported eating romaine lettuce in the week before their illness started. This percentage is significantly higher than results from a survey of healthy people in which 46% reported eating romaine lettuce in the week before they were interviewed.