
Largest US Cyclospora Outbreak Surpasses 1,600 Cases as Climate Change Expands Parasite’s Range
The United States is in the midst of the largest outbreak of cyclosporiasis ever recorded. At least 1,645 laboratory-confirmed cases of Cyclospora cayetanensis infection have been reported across 34 states since May 2026, with more than 5,100 additional cases under investigation, bringing the potential total above 6,700. 141 people (9% of confirmed cases) have been […]









