What You Need to Know About Cyclosporiasis

In July 2026 a large multistate outbreak in the United States thrust an obscure intestinal illness known as cyclosporiasis into the national spotlight. The first cases were reported in May, and by early July health officials in more than 30 states were investigating cases linked to the causative parasite, Cyclospora cayetanensis. Some 19,883 cases were confirmed by September 11, according to the U.S. Centers for Disease Control and Prevention (CDC). That same day, the outbreak...