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Michigan's Cyclosporiasis Outbreak Grows to More than 1,500 Cases, 44 Hospitalized
Health officials say 44 people have been hospitalized as investigators continue searching for the source of the outbreak.
On Friday, July 10, the Michigan Department of Health and Human Services reported 1,562 cyclosporiasis cases across 40 counties since June 22, with Monroe County accounting for 215 cases.
State health officials have not yet identified the specific produce grower or supplier responsible; Dr. Teena Chopra, Wayne State University infectious disease professor, noted that tracking the source is challenging due to the parasite's incubation period.
To date, 44 people have been hospitalized due to the foodborne parasite, which causes "explosive diarrhea," fever, and fatigue; symptoms typically appear between two days and two weeks after infection.
The MDHHS recommends residents thoroughly wash all fresh produce under running water and cook leafy greens when possible to reduce exposure risk from the single-cell organism.
Michigan typically averages about 50 cases annually, making the current spike 14 times higher than normal; the Centers for Disease Control and Prevention reports at least 31 states have identified cases since early May.