The Washington State Department of Health is investigating a possible link between contaminated lettuce and nine confirmed cases of E. coli O157:H7 infection in the state. A tenth case, which might also be part of the same outbreak was not lab-tested.
Bill Marler, who is based in the Seattle, WA area, reports that the outbreak has been traced to bagged, commercial romaine lettuce, according to a news item on King 5 TV. The lettuce was apparently supplied to restaurants and/or food service establishments, and was not available through retail stores.
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