Overview
- U.S. health authorities report more than 4,173 laboratory‑confirmed cyclospora cases and over 7,400 additional illnesses under review, with state tallies — notably Michigan’s — far higher than federal counts.
- The FDA on Wednesday opened a separate traceback for a new 72‑case cluster while continuing at least five concurrent investigations into other linked outbreaks.
- Epidemiology and supply‑chain tracing have tied one large multistate cluster to shredded iceberg lettuce supplied by Taylor Farms de Mexico, and the company issued a voluntary recall even though the FDA later removed a previously reported positive product test as a false positive.
- Cyclospora is hard to detect and cannot be grown in culture, so long incubation periods and low DNA yield force investigators to rely on patient interviews, receipts and distribution records, which is straining state and local public‑health capacity.
- Hundreds have been hospitalized but no deaths reported, and officials urge people with persistent watery diarrhea to seek testing and the standard 10‑day TMP‑SMX treatment while public‑health teams continue tracebacks that could expand the list of affected states and products.