Federal health officials are investigating an increase in cyclosporiasis cases across 17 states, with 145 confirmed infections reported as of mid-June. The Centers for Disease Control and Prevention (CDC) is monitoring the situation as the parasite known as Cyclospora typically sees a rise in cases during the warmer months.
The illness, cyclosporiasis, is caused by the microscopic parasite Cyclospora. Its primary symptom is watery, and sometimes “explosive,” diarrhea that can persist for weeks or months if untreated. Other symptoms reported include severe abdominal cramping, bloating, nausea, fatigue, and significant weight loss.
The official outbreak season for Cyclospora runs from May 1 through August 31. While the infection can resolve on its own, it often requires antibiotic treatment. Out of the 145 confirmed cases, 20 individuals have required hospitalization, according to the CDC. No deaths have been reported in connection with these cases.
The reported cases span a wide age range, from 5 to 86 years old, with a median age of 42. Data indicates that women constitute 61% of the reported cases. The infections have been noted in states including Texas, Illinois, and New York, which has reported the highest number of cases, ranging from 31 to 80.
Although the CDC, in coordination with the Food and Drug Administration and state health departments, is investigating several multi-state clusters, a definitive source or single outbreak linking all cases has not yet been identified. The CDC advises individuals experiencing symptoms consistent with cyclosporiasis to seek medical evaluation for testing and treatment.