9 August 2026
Tens of thousands of people across 47 states are reporting illness linked to the cyclospora outbreak that started in mid-May.
While pressure is mounting at the FDA to resolve the outbreak, experts tell CNBC issues in the U.S. food safety arena have been mounting for years. CNBC's Brandon Gomez explores the challenges facing both the private and public sector when it comes to controlling outbreaks of this magnitude.
Cyclospora cayetanensis is an apicomplexan protist that causes cyclosporiasis in humans and possibly other primates. It is a cyst-forming coccidian that causes self-limiting diarrhea.
The health risks associated with the disease are generally limited to travelers visiting endemic regions and acquiring the infection; this is why C. cayetanensis has been labeled as one of the causes of "traveler's diarrhea." Morphologically, the oocysts are spherical, with a diameter of 7.5–10 μm and a thick wall, 50 nm thick, that protects them from the external environment.
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