Overview
- The FDA re-reviewed a lettuce sample and on Monday concluded the prior Cyclospora detection was a false positive, removing the positive result from its public update.
- Federal and state investigators say epidemiologic interviews and supply‑chain traceback work still converge on shredded iceberg lettuce produced by Taylor Farms in central Mexico, and the company’s voluntary recall remains active.
- As of the latest update there are no confirmed positive product tests for Cyclospora, a finding officials say reflects limits of testing rather than proof the lettuce is not implicated.
- The outbreak has sickened thousands across many states with Michigan the epicenter, where state totals exceed 6,100 cases and federal counts have reported more than 8,000 illnesses overall.
- Investigators will keep collecting and testing samples and pursuing tracebacks while public health guidance stresses testing for Cyclospora in symptomatic patients and notes that cooking kills the parasite and TMP‑SMX is the recommended treatment.