Information on the current multistate outbreak of cyclosporiasis in the United States.
Learn about the intestinal illness caused by the microscopic parasite Cyclospora cayetanensis....
To prevent illness, avoid food or water possibly contaminated with feces and use safe food practices
The most common symptom of Cyclospora infection is watery diarrhea.
For Health Care and Public Health Professionals
Trimethoprim-sulfamethoxazole (TMP-SMX) is the treatment of choice for cyclosporiasis.
- Cyclosporiasis is a nationally notifiable disease, and cases are reported to CDC.
- Clinical information on the parasite that causes cyclosporiasis, including testing and treatment.
- CDC regularly documents all publications regarding outbreaks, surveillance, and the epidemiology of...

