Colorado Parasite Cases Stable Amid Midwest Outbreak

In Colorado, the intestinal illness cyclosporiasis is not presenting an unusual caseload as of July 2026. The state health department recorded 93 cases in the first six months of the year, a figure that aligns with the five-year average. This situation differs significantly from outbreaks occurring in the Midwest, which are under federal investigation.

Officials note that Colorado encounters cyclosporiasis annually, with most cases typically arising between May and August. Unlike multistate outbreaks, Colorado's infections are not currently linked to any widespread issues. Investigations reveal that the majority of reported cases in the state are associated with international travel, rather than local contamination.

The parasite, cyclospora cayetanensis, spreads through contaminated food or water. While infection can cause significant digestive distress, it is rarely life-threatening. Public health recommendations include practicing safe food handling, particularly with produce, to prevent transmission. Treatment often involves antibiotics like trimethoprim-sulfamethoxazole.