Infections from the diarrhea-causing parasite cyclospora are surging, with state-level data suggesting that 2026 is already the nation's worst year for reported cases.

Health officials are tracking new cases of cyclosporiasis, a foodborne infection that leads to severe gastrointestinal symptoms, including intense diarrhea.

More than 2,800 cases of cyclospora infection have been reported, largely concentrated in Michigan, state health officials reported Monday.