CDC probes surge in cyclospora infections across 18 states
More than 400 cases of cyclospora-related diarrheal illness have been reported in 18 U.S. states, prompting the CDC to work with the FDA and local health officials to identify sources.
The U.S. Centers for Disease Control and Prevention said it is investigating a sharp rise in cyclospora infections that have produced over 400 cases of watery, sometimes "explosive" diarrhea in 18 states since early May. The parasite, which spreads through raw produce and water contaminated with human feces, causes cyclosporiasis, a gastrointestinal illness marked by cramps, nausea, fatigue, low-grade fever, vomiting and frequent watery stools.
Between May 1 and June 16, the CDC recorded 145 cases in 17 states, 20 of which required hospitalization, but no deaths. Michigan has reported more than 300 cases since June 22, far exceeding its typical annual total of about 50, while New York has logged 107 cases since May, roughly double its usual rate for the same period.
"The latest cases are alarming because of the unusually high numbers and as yet unidentified sources," the CDC said.
The agency is collaborating with the Food and Drug Administration and state health departments to trace multiple clusters, noting that affected individuals had not traveled abroad in the two weeks before falling ill. No single nationwide source has been identified, and the illness remains seasonal, usually peaking between May and August when consumption of fresh produce such as basil, cilantro, spinach and berries increases.
Health officials advise thorough washing of fresh produce, hands and kitchen surfaces, and recommend that anyone experiencing symptoms seek medical care, stay hydrated and report confirmed cases to local health authorities. Most healthy individuals recover without treatment, though antibiotics are used in more severe cases.