An outbreak of diarrhea caused by the parasite cyclospora has risen to more than 3,000 cases in Michigan and Ohio.
Michigan reported 2,640 cases as of 9:30 a.m. Monday, including 44 hospitalizations.
Ohio has reported 434 cases since June 1. At least 28 people have been hospitalized.
As of July 10, 31 states have reported cases to the US Centers for Disease Control and Prevention, although it’s not clear whether they’re all part of the same outbreak.
The CDC says “multiple states” have reported an increase in cases in the last two weeks compared with the same period in 2025. The agency said Friday that its national count — 843 confirmed cases since May 1 — is lower than states’ counts while cases undergo further analysis.
