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What is cyclosporiasis and how can you avoid catching this, uh, ‘explosive’ GI illness?

Cyclosporiasis is a gastrointestinal infection caused by the parasite Cyclospora cayetanensis. It can be avoided through proper hygiene and food safety measures.

Health Science Last checked Sep 19, 2026

Key points

  • Cyclosporiasis is an intestinal illness caused by the parasite Cyclospora cayetanensis.
  • Symptoms include watery diarrhea, bloating, nausea, fatigue, and loss of appetite.
  • The infection can be spread through contaminated food or water, or contact with infected animals or people.
  • Proper handwashing, cooking foods thoroughly, and avoiding raw produce from certain countries are effective prevention methods.

Explanation

Cyclosporiasis is a gastrointestinal illness caused by the parasite Cyclospora cayetanensis. Symptoms include watery diarrhea, bloating, nausea, fatigue, and loss of appetite. The infection can be contracted through contaminated food or water, as well as contact with infected animals or people. To avoid cyclosporiasis, proper handwashing, cooking foods thoroughly, and avoiding raw produce from certain countries are effective prevention methods.

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