CDC Issues Health Alert Network (HAN) Advisory for Widespread U.S. Cyclospora Outbreak

The Centers for Disease Control and Prevention (CDC) has issued a Health Alert Network (HAN) advisory regarding a significant increase in Cyclospora infections across the United States. The advisory, initially issued on July 14, 2026, reports 1,645 confirmed cases of the parasitic infection nationwide, with over 5,100 additional cases requiring further analysis. This represents a substantial rise compared to the 249 cases reported at the same time in 2025, with 141 patients (9%) requiring hospitalization.