Cyclospora cayetanensis is a microscopic parasite currently causing one of the largest cyclosporiasis outbreaks in US history — with over 11,000 confirmed or probable cases reported to the CDC as of July 2026, linked primarily to contaminated iceberg lettuce from Taylor Farms de Mexico and affecting more than 30 states. The condition causes watery, sometimes explosive diarrhea, severe cramping, nausea, fatigue, and symptoms that can cycle on and off for weeks or months without treatment.
This page covers what Cyclospora is, how it spreads, when to seek medical care, natural approaches for symptom relief and recovery support, gut healing after the infection clears, and how to protect yourself and your household during an active outbreak.
Cyclospora infection (cyclosporiasis) requires medical diagnosis and treatment. The only proven treatment is the antibiotic trimethoprim-sulfamethoxazole (Bactrim/Septra). No natural remedy has been clinically proven to eliminate Cyclospora from the body. If you have symptoms of cyclosporiasis — particularly watery diarrhea, severe cramping, or symptoms that cycle on and off — see a healthcare provider and request stool testing specifically for Cyclospora. Standard stool tests do not always screen for this parasite; you may need to request it specifically.
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