Overview
- Federal updates on July 9–10 show 843 confirmed domestically acquired cases in 31 states with 86 hospitalizations while CDC staff are reviewing more than 1,500 additional potential cases.
- Michigan has reported 1,562 cases and dozens hospitalized in a fast-moving cluster that far exceeds the state’s normal annual totals and is driving much of the national concern.
- CDC, FDA and state teams have opened multiple cluster probes and supply-chain tracebacks focused on fresh fruits, vegetables and herbs but have not identified any common product, grower or supplier.
- Investigators face long delays because Cyclospora takes days to weeks to become infectious, diagnosis needs specialized stool tests, and genomic tools provide limited linkage, so counts are expected to rise.
- Health officials urge thorough handwashing and produce-washing, advise cooking produce when possible, and recommend testing and treatment with trimethoprim-sulfamethoxazole for symptomatic patients to prevent dehydration and hospital stays.