Cyclosporiasis: Most U.S. Cases Reported in Warmer Months | FoodSafety.gov

Cyclosporiasis: Most U.S. Cases Reported in Warmer Months | FoodSafety.gov

Cyclosporiasis is an intestinal illness caused by the protozoan (unicellular) parasite Cyclospora cayetanensis.

Cyclosporiasis can occur at any time of the year, but most of the reported cases and outbreaks in the United States occur during spring and summer months, particularly during May through August. About half of all U.S. cases that are not associated with a known outbreak occur in people with a recent history of travel outside the United States and Canada.

Read more about avoiding your risk of illness.