Outbreak of diarrhea-causing parasite grows to more than 1,000 cases

An outbreak of cyclosporiasis caused by the Cyclospora parasite has infected over 1,000 people in Michigan and Ohio, with no deaths reported. The source remains unidentified, and investigations are ongoing in 28 other states. Previous large U.S. outbreaks include a 1997 case tied to Guatemalan raspberries and a 2019 outbreak linked to Mexican basil.