Overview
- The Centers for Disease Control and Prevention has received reports of 4,173 laboratory‑confirmed domestic cyclosporiasis cases since May 1 with roughly 7,400 additional suspected illnesses under review.
- State totals differ from federal counts with Michigan reporting about 7,664 cases as of July 23 and at least 160 hospitalizations in the state.
- The FDA opened a new traceback on a separate cluster that has sickened at least 72 people and lists that investigation as active while it continues work on other outbreaks.
- One large multistate cluster has been epidemiologically linked to shredded iceberg lettuce supplied by Taylor Farms de Mexico, prompting voluntary recalls and restaurant removals despite no confirmed product positives after a retracted lab result.
- Investigators warn that Cyclospora is hard to detect and cannot be cultured, which combined with low‑level, transient contamination, lab backlogs, and long incubation times is likely producing undercounts and slower outbreak resolution through the peak season.