Cyclosporiasis, a nasty parasitic infection that causes “explosive” watery diarrhea, has sickened dozens of people in Michigan and other parts of the United States.

More than 170 Michiganders have contracted cyclosporiasis, a parasitic gastrointestinal illness that causes explosive, watery diarrhea.

The Michigan Department of Health and Human Services has identified 174 cases of cyclosporiasis since June 22, more than three times the number the state typically records in an entire year.