Overview
- The CDC has recorded 145 domestically acquired Cyclospora infections from May 1 to June 16, with about 20 people hospitalized and no deaths reported.
- Southeastern Michigan has reported a separate, fast-growing cluster since June 22 with roughly 150 to 174 cases concentrated in Monroe and nearby counties.
- Local, state and federal teams, including the CDC and FDA, are investigating several clusters but have not yet identified the specific food or product that caused the illnesses.
- Cyclospora spreads when food or water is contaminated with feces, is not known to pass directly person to person, and is typically treated with trimethoprim‑sulfamethoxazole; clinicians and labs are urged to test symptomatic patients.
- Officials warn reported counts are likely underestimates, Michigan’s one-week surge already exceeds the state’s usual annual total of about 50 cases, and public guidance urges careful washing and handling of fresh produce and prompt care for persistent diarrhea.