Font Size

Cyclospora Infection (Cyclosporiasis)

Cyclospora Infection (Cyclosporiasis) Facts

  • The Cyclospora parasite causes cyclosporiasis when humans ingest contaminated water or food containing Cyclospora sporulated oocysts.
  • Symptoms and signs of Cyclospora infections include watery diarrhea, gas, cramping, bloating, nausea, weight loss, appetite loss, and fatigue.
  • Medical care should be sought if symptoms last a week or more, if a person has traveled through an endemic area, or if they become dehydrated and weak.
  • Diagnosis of Cyclospora infections require special laboratories and lab tests to detect the parasites.
  • The only CDC-recommended treatment is the antibiotic trimethoprim-sulfamethoxazole (Bactrim, Septra, Sulfatrim).
  • Self-care at home consists of symptomatic treatment and completing oral antibiotic therapy.
  • Follow-up is not usually required if treatment is effective, but follow-up for certain individuals is recommended.
  • The prognoses of most treated Cyclospora infections is good to excellent; the prognoses of untreated infections range from good to a few poor outcomes.
  • Complications of Cyclospora infections may include a relapsing illness, malabsorption, cholecystitis, Reiter's syndrome (reactive arthritis), dehydration, and electrolyte problems in some patients.
  • There is no vaccine to prevent Cyclospora infections; the CDC recommends avoiding water and foods contaminated with human feces and adherence to FDA guidelines for food growers and food packagers.
Medically Reviewed by a Doctor on 4/24/2015

Must Read Articles Related to Cyclospora Infection (Cyclosporiasis)

Diarrhea Diarrhea can be caused by bacterial or viral infections, parasites, intestinal diseases or conditions, reactions to medications, and food intolerance. Symptoms ...learn more >>
Vomiting and Nausea
Vomiting and Nausea Vomiting and nausea are common complaints that accompany many conditions and diseases. A few common causes of vomiting and nausea include food poisoning, viruse...learn more >>

Patient Comments & Reviews

The eMedicineHealth doctors ask about Cyclospora:

Cyclospora Infection - Symptoms & Signs

What symptoms and signs did you experience with your Cyclospora infection?

Cyclospora Infection - Treatment

What treatment did you receive for your Cyclospora infection? How quickly did your infection clear up once treatment was started?

Medical Dictionary