cyclosporiasis
Start with the big picture
Cyclospora spreads when people ingest sporulated oocysts in contaminated water or fresh produce, including produce associated with reported outbreaks. Because oocysts need time in the environment to become infectious, the infection is not transmitted directly from person to person. Illness commonly features prolonged or relapsing watery diarrhea, abdominal cramping, and weight loss; some patients also experience anorexia, fatigue, or low-grade fever. Diagnosis may use stool testing with modified acid-fast staining, UV autofluorescence, or PCR, and examining specimens collected on separate days can improve sensitivity. The lesson reviews TMP-SMX as the treatment of choice, alternatives for sulfa allergy, supportive care, monitoring considerations, and prevention measures such as safe water and produce handling.
What you'll learn
- Describe Cyclospora cayetanensis and its fecal–oral transmission.
- Recognize common manifestations and groups at risk for severe or prolonged illness.
- Identify stool-based methods used to diagnose cyclosporiasis.
- Summarize treatment options, supportive care, and relevant monitoring considerations.
- Explain prevention measures and why direct person-to-person spread does not occur.
Continue your study
Work through the complete notes and reinforce the topic with the study tools available in the full lesson.
