Overview
- Michigan reported 10,077 confirmed cyclosporiasis cases on Wednesday, July 29, the state health department said, making it the hardest‑hit state in the outbreak.
- The Centers for Disease Control and Prevention said on July 28 that there are 6,707 laboratory‑confirmed domestic cases and it is reviewing more than 11,500 additional suspected reports, for over 18,000 possible illnesses this season.
- Federal traceback work has tied a large multistate cluster to shredded iceberg lettuce supplied by Taylor Farms and served at some Taco Bell locations, and recalls and product removals were issued even though product‑level lab confirmation is limited.
- Hundreds of people have been hospitalized and no deaths have been reported, and health officials urge clinicians to order Cyclospora‑specific stool testing and to treat confirmed cases with trimethoprim‑sulfamethoxazole (TMP‑SMX).
- Investigators say Cyclospora is hard to trace because symptoms can appear days to weeks after exposure and the parasite cannot be easily fingerprinted, so teams are relying on patient interviews, supply‑chain records and multiple cluster probes while advising consumers to wash produce, discard outer lettuce leaves, prefer whole heads over prewashed mixes, or cook greens to 158°F.