
This percentage was significantly higher than results from a survey Cdc-pdf of healthy people in which 46% reported eating romaine lettuce in the week before they were interviewed. Of the 166 people interviewed, 145 (87%) reported eating romaine lettuce in the week before their illness started. In interviews, ill people answered questions about the foods they ate and other exposures they had before they became ill. Investigation of the OutbreakĮpidemiologic, laboratory, and traceback evidence indicated that romaine lettuce from the Yuma growing region was the likely source of this outbreak. These findings do not affect treatment guidance since antibiotics are not recommended for patients with E. Isolates from four of those ill people also contained genes for resistance to ampicillin and ceftriaxone. Standard antibiotic resistance testing of eight clinical isolates by CDC’s National Antimicrobial Resistance Monitoring System (NARMS) laboratory confirmed these findings. WGS analysis of isolates from 184 ill people identified antibiotic resistance to chloramphenicol, streptomycin, sulfisoxazole, tetracycline, and trimethoprim-sulfamethoxazole. Five deaths were reported from Arkansas, California, Minnesota (2), and New York. Of 201 people with information available, 96 (48%) were hospitalized, including 27 people who developed hemolytic uremic syndrome, a type of kidney failure. Sixty-seven percent of ill people were female. Ill people ranged in age from 1 to 88 years, with a median age of 28. Illnesses started on dates ranging from Mato June 6, 2018. A list of the states and the number of cases in each can be found on the Case Count Map page. coli O157:H7 were reported from 36 states. This means that the ill people were more likely to share a common source of infection.Īs of June 27, 2018, 210 people infected with the outbreak strain of E. WGS performed on bacteria isolated from ill people in this outbreak showed that they were closely related genetically. WGS gives a more detailed DNA fingerprint than PFGE. CDC PulseNet manages a national database of these DNA fingerprints to identify possible outbreaks.

coli bacteria isolated from ill people by using techniques called pulsed-field gel electrophoresis (PFGE) and whole genome sequencing (WGS). PulseNet is the national subtyping network of public health and food regulatory agency laboratories coordinated by CDC. Public health investigators used the PulseNet system to identify illnesses that were part of this outbreak. Food and Drug Administration External (FDA) investigated a multistate outbreak of E. Important steps to take are to cook meat thoroughly, and wash hands after using the restroom or changing diapers, before and after preparing or eating food, and after contact with animals.ĬDC, public health and regulatory officials in several states, and the U.S.

5 deaths were reported from Arkansas, California, Minnesota (2), and New York.96 people were hospitalized, including 27 people who developed a type of kidney failure called hemolytic uremic syndrome.

210 people infected with the outbreak strain were reported from 36 states.CDC, public health and regulatory officials in several states, and the U.S.This outbreak appears to be over as of June 28, 2018.
