Michigan reports 2,640 Cyclospora cases; Lettuce identified as possible source of outbreak

Michigan health officials are investigating 2,640 cyclosporiasis cases linked to possible contamination in lettuce or salad greens. The Michigan Department of Health and Human Services has not identified a specific product, grower, or supplier, and investigations continue with federal partners. Cyclospora, a parasite causing intestinal symptoms, typically sees 40-50 annual cases in Michigan.