Cyclospora cayetanensis is a parasitic protozoan causing severe gastrointestinal illness across North America. This foodborne pathogen has triggered a multi-state health emergency affecting 31 states, with cases linked to contaminated produce. Symptoms include watery diarrhea, abdominal cramps, and fatigue lasting weeks. Health authorities are investigating distribution chains and implementing strict food safety protocols. Understanding transmission routes and prevention measures is crucial for public health response and consumer protection during this expanding outbreak.

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