Home / Health / Michigan Cyclosporiasis Cases Surge Past 9,200
Michigan Cyclosporiasis Cases Surge Past 9,200
27 Jul
Summary
- Michigan sees over 9,200 cyclosporiasis cases as of July 27.
- 160 Michigan residents have been hospitalized due to the illness.
- Lettuce and salad greens are identified as potential sources.

As of July 27, Michigan has documented over 9,200 cases of cyclosporiasis, a significant increase from earlier in the week. This marks a substantial rise from the typical annual count of around 50 cases.
Health officials report that 160 Michigan residents had been hospitalized as of July 23 due to the parasite. This outbreak, which gained attention in late June, has impacted nearly every county in the state, with Wayne, Ingham, Oakland, Monroe, and Washtenaw counties being the most affected.
Federal authorities, including the CDC, are investigating multiple clusters of cyclosporiasis across 41 states, with Michigan being the most severely affected. Testing has pointed to lettuce and salad greens as a potential source, with a supplier to Taco Bell linked to some cases.
Symptoms of cyclosporiasis, caused by the Cyclospora cayetanensis parasite, typically appear about a week after infection and can include frequent watery diarrhea, nausea, and fatigue. The illness can last for weeks if untreated.