Overview
- Michigan has seen cases jump to 572 as of July 4, rising from about 170 on June 30 and concentrated in Monroe, Lenawee, Washtenaw, Wayne, Shiawassee, Jackson, Oakland and Livingston counties.
- State, local and federal teams from MDHHS, the CDC and the FDA are coordinating epidemiologic interviews, stool testing and tracebacks but have not identified a single grower, supplier or produce type.
- Cyclospora is a parasite that causes watery, sometimes severe diarrhea and symptoms typically appear two days to two weeks after exposure; diagnosis requires specific stool testing and treatment is a 10‑day course of trimethoprim‑sulfamethoxazole.
- Other states are reporting elevated counts, for example Ohio had about 177 cases as of early July and New York and Illinois have reported higher‑than‑normal activity, though no single national source has been found.
- Officials urge people to wash produce under running water, prefer whole heads of lettuce over precut mixes, cook produce when possible to 158°F to kill the parasite and seek care for prolonged diarrhea because reported counts likely understate true infections.