What to know about the cyclosporiasis outbreak hitting more than half of U.S. states

A cyclosporiasis outbreak—caused by the *Cyclospora cayetanensis* parasite—has been reported in over half of U.S. states, with confirmed cases in Connecticut and New Hampshire. The parasite, known for triggering severe, explosive diarrhea, has prompted retailers like H-E-B to reassure customers that produce remains safe, though precautions are being advised. Coverage from local stations (WFSB, WMUR, WOAI) and national outlets (NPR, FOX Weather, NBC 6 South Florida) emphasizes the need for hygiene practices and potential links to contaminated fresh produce, though no specific source has been identified yet.

Guidance from outlets like *The Hill* and KIRO 7 News focuses on symptoms (watery diarrhea, stomach cramps, fatigue) and steps to take if infected, including seeking medical treatment. The CDC has not yet issued a nationwide alert, but state-level advisories are growing. Retailers and health departments are coordinating to monitor supply chains, though no widespread recalls have been announced.

Watch for updates on whether specific produce types or regions are linked to higher transmission rates. The CDC’s role in coordinating a federal response—and any potential advisories on produce consumption—will be critical. Local health departments may expand testing as cases rise, and retailers could tighten sourcing protocols if contamination sources are pinpointed.