A cyclosporiasis outbreak has spread to 31 US states, with the Centers for Disease Control and Prevention reporting 843 confirmed and 1,500 suspected cases as of July 10, 2026. The parasite, typically contracted through contaminated water or raw produce, has sickened individuals ranging in age from 5 to 88.
Michigan has borne the heaviest burden, reporting 2,640 cases, while Ohio has documented 177 cases. Nationwide, 86 people have been hospitalised and no deaths have been recorded. Health officials in California, Texas, and Florida have reported infections since early May, and the CDC expects the case count to continue rising, though contaminated products have not yet been identified.
The outbreak unfolds against a backdrop of reduced public health capacity. The Trump administration cut $11.4 billion in grants to state and local health departments in March 2025 and subsequently narrowed the scope of the FoodNet surveillance programme from eight pathogens to just two.