US cyclosporiasis outbreak sickens thousands
Analysis based on 348 articles · First reported Jun 30, 2026 · Last updated Jul 19, 2026
The outbreak is likely to impact consumer confidence in fresh produce, particularly lettuce and salad greens, potentially reducing sales for producers and retailers. Restaurants like Yum! Brands — Taco Bell may face temporary supply disruptions and reputational damage, while food safety regulations could come under increased scrutiny.
A widespread outbreak of cyclosporiasis, an intestinal illness caused by the Cyclospora parasite, has affected thousands across the United States, with United States — Michigan reporting over 3,300 cases as of mid-July 2026. The outbreak has spread to at least 31 states, with significant case counts in United States — Ohio, New York, United States — Illinois, and other states. Health officials suspect contaminated lettuce or salad greens as a possible source, but no specific product, grower, or supplier has been confirmed. The CDC has issued a health alert and is coordinating with state and federal partners, including the FDA, to investigate. Yum! Brands — Taco Bell voluntarily removed certain ingredients from select restaurants as a precaution. The outbreak has led to hospitalizations but no deaths. The CDC removed cyclospora from its mandatory monitoring list in 2025, which some experts say may hinder surveillance. Cases are expected to continue rising through August.
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