The outbreak of diarrhea caused by the parasite Cyclospora has risen to more than 3,000 cases in Michigan and Ohio, and the ongoing investigation suggests lettuce or salad greens may be the source. However, Michigan health officials said other foods can’t be ruled out, and no specific type, grower or supplier has been identified as the source. “Early information has shown lettuce as a common product that regularly comes up during the investigation,” Dr. Natasha Bagdasarian, Michigan’s chief medical executive, said in a statement. The state said its investigation is ongoing. Michigan reported 2,640 cases as of 9:30 a.m. Monday July 13, 2026, including 44 hospitalizations. Ohio has reported 361 cases since June 1. At least 46 people have been hospitalized. Some of the largest concentrations are in northwestern counties near the Michigan border. As of July 10, 31 states have reported cases to the CDC, although it’s not clear whether they’re all part of the same outbreak. The CDC says “multiple states” have reported increases in cases over the last two weeks compared with the same period in 2025. The agency said Friday that its national count of 843 confirmed cases since May 1 is lower than states’ counts, as cases undergo further analysis. Some restaurants have reportedly removed certain fresh ingredients from their menus while the investigation continues. @ https://www.cnn.com/2026/07/13/health/cyclospora-parasite-diarrhea-outbreak-increase?cid=ios_app
