Cyclospora cayetanensis is a microscopic protozoan parasite that causes cyclosporiasis, a gastrointestinal illness characterized by prolonged and relapsing diarrhea. Primarily found in tropical and subtropical regions, it has been responsible for various foodborne outbreaks globally....
Cyclospora cayetanensis is a single-celled parasite that infects the small intestine. It has a complex life cycle that requires time outside the host to become infectious. The disease it causes, cyclosporiasis, is notable for its potential to cause prolonged and relapsing symptoms, particularly affecting the gastrointestinal system.
Cyclospora is transmitted through the ingestion of food or water contaminated with feces that contain the parasite. The oocysts need time (days to weeks) outside the host to become infectious. Common sources of outbreaks have included contaminated fresh produce such as berries, lettuce, and herbs. Direct person-to-person transmission is unlikely as the oocysts are not immediately infectious when shed in feces.