Q&A: Rise in cyclosporiasis cases

Cyclosporiasis is a gastrointestinal illness caused by the microscopic parasite Cyclospora.

People contract cyclosporiasis by consuming food or water contaminated with feces containing Cyclospora parasites.

Health officials have reported a notable increase in cases across multiple U.S. states this year compared with the same period in 2025.

Since May 1, the U.S.

Centers for Disease Control and Prevention (CDC) has received reports of nearly 850 confirmed domestically acquired cases. ...