Michigan cyclosporiasis outbreak tops 10,000 cases
Analysis based on 18 articles · First reported Jul 23, 2026 · Last updated Jul 30, 2026
The outbreak has led to a recall of iceberg lettuce from central Mexico, impacting Taylor Farms and potentially affecting consumer confidence in lettuce products. The food industry may face increased scrutiny and regulatory actions, while healthcare systems in affected areas are strained by the surge in cases.
A massive outbreak of cyclosporiasis, a parasitic illness causing diarrhea, has affected over 10,000 people in United States — Michigan since June 22, 2026, making it the state's worst-ever outbreak. The outbreak has been linked to iceberg lettuce from central Mexico, leading to a recall by Taylor Farms. Cases have been reported in 71 of United States — Michigan's 83 counties, with Wayne, Oakland, Washtenaw, and Ingham counties hardest hit. Hospitalizations have reached 193. The CDC and FDA are investigating alongside state health officials. The outbreak appears to be plateauing, with daily new cases declining since a peak on July 13. The outbreak has spread to at least nine states, with United States — Michigan and United States — Ohio having the highest lab-confirmed cases. Health officials recommend buying whole heads of lettuce and following safety guidance.
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