Michigan cyclospora outbreak investigation zeroes in on lettuce, salad greens

Michigan public health investigators say they are zeroing in on lettuce and other salad greens as potential sources of a massive outbreak of cyclosporiasis that has infected at least 2,640 people in the state since June 22.

“Although we do not have a definite product identified as the source of the outbreak, we want to let Michiganders know what we have learned so far so they can take steps to protect their families,” said Dr. Natasha Bagdasarian, the state’s chief medical executive, in a statement issued Monday, July 13. “Early information has shown lettuce as a common product that regularly comes up during the investigation. We will continue to provide updates as we learn more.” 

Other types of food items cannot be completely ruled out, the state health department said, and no specific type of produce, grower or supplier has been identified as the source.

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