CDC Tracks 24,000 Cyclosporiasis Cases, Over 700 Hospitalized

The CDC is tracking a large cyclosporiasis outbreak, with more than 24,000 cases and over 700 hospitalizations reported across the U.S. this summer. As of Aug. 11, the agency recorded 13,895 laboratory-confirmed cases across 47 states, including 740 hospitalizations, according to Becker's Hospital Review. An additional 10,455 suspected cases are still awaiting lab confirmation.

Cyclosporiasis is an intestinal illness caused by the microscopic parasite Cyclospora cayetanensis, usually spread through contaminated fresh produce. Cases climb every summer, and this year's pace has pushed confirmed infections and admissions to notable levels. The large backlog of unconfirmed cases suggests the true count is higher than lab data currently shows.

For hospitals and clinicians, the practical takeaways are diagnostic and operational. Cyclospora requires specific stool testing to detect, so providers seeing prolonged watery diarrhea should order the right panels rather than assume a routine bug. The condition is treatable with antibiotics, making prompt recognition key to shortening illness and easing avoidable admissions during peak season.