An outbreak of cyclosporiasis, a gastrointestinal illness caused by the parasite *Cyclospora*, has been reported in 31 U.S. states with 843 confirmed cases—and possibly many more unreported—as of mid-July 2026; Michigan alone recorded 1,562 cases. While the outbreak’s source remains under investigation, past outbreaks have been linked to contaminated fresh produce like lettuce and basil, often imported from Mexico. Health officials warn that infections typically peak in spring and summer, with symptoms ranging from diarrhea and nausea to severe dehydration, especially among older adults. Prevention measures include thorough washing or cooking of produce, practicing good hygiene, and seeking medical care if symptoms arise.
Original Article Source Link:
https://www.npr.org/2026/07/12/nx-s1-5890935/cyclosporiasis-outbreak-diarrhea-nausea-where-states-us