Federal Health Officials Investigate Cyclosporiasis Clusters as Parasite Season Begins
Federal health officials are investigating five distinct clusters of cyclosporiasis cases, according to the FDA, as parasite season began in May.

Raleigh Durham, NC, July 20, 2026 —
Federal health officials have announced an investigation into five separate clusters of cyclosporiasis cases, coinciding with the start of the annual parasite season in May. The U.S. Food and Drug Administration (FDA) confirmed the ongoing investigations into these outbreaks.
Cyclosporiasis is an intestinal illness caused by the microscopic parasite Cyclospora cayetanensis. The parasite is transmitted to humans through contaminated food or water. Symptoms typically include diarrhea, loss of appetite, weight loss, stomach cramps, bloating, gas, nausea, and fatigue. Some individuals may also experience vomiting, fever, and body aches.
The identification of distinct clusters suggests a common source or sources of contamination may be responsible for these outbreaks. Health authorities are working to pinpoint the origins of the infections, which could involve specific food products, water sources, or other environmental factors. The FDA’s involvement indicates a focus on the safety of the food supply chain.
Further details regarding the specific locations, the number of individuals affected in each cluster, or the suspected sources of contamination have not yet been publicly released. Investigations into foodborne illnesses can be complex and time-consuming, involving traceback efforts and laboratory testing to confirm links between cases and potential sources.
The parasite season for Cyclospora typically runs from May through August, though cases can occur year-round. Public health agencies often issue advisories and conduct surveillance during this period to monitor for potential outbreaks and inform consumers about prevention measures.
Officials are expected to provide updates as the investigations progress. Consumers are advised to practice good hygiene, including thorough handwashing, and to prepare food safely. If individuals experience symptoms consistent with cyclosporiasis, they are encouraged to consult a healthcare provider.
Story summarized from the original created by web.operations@abc11mail.com(WTVD-TV Raleigh-Durham) on abc11.com, see more information here.
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