Cyclospora outbreak surges past 1,700 cases across dozens of states, with Michigan the hardest hit. Should I be worried?
A Cyclospora parasite outbreak has infected over 1,700 people across the U.S., with Michigan experiencing the highest concentration of cases. Health officials are investigating the source of the contaminated food or water causing the illness.
Add us on Google Updated Sat, July 11, 2026 at 5:54 PM UTC Cyclosporiasis. (CDC) U.S. health officials are still investigating the source of an intestinal illness that causes "explosive" diarrhea and has now sickened more than 1,700 people confirmed nationwide, with at least 1,500 additional cases pending confirmation. The outbreak's largest cluster remains in Michigan.
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