infectious diseases
Cyclosporiasis
Diagnosis of Cyclosporiasis
Microscopic examination of stool for oocysts Detection of parasite DNA in stool Diagnosis of cyclosporiasis is by stool tests, either molecular testing for parasite DNA or microscopic examination for oocysts. A modified Ziehl-Neelsen or Kinyoun acid-fast staining technique can help identifyCyclospora. Oocysts ofCyclosporaare autofluorescent.Cyclosporaoocysts are spherical and similar in morphology to but larger thanCryptosporidiumoocysts. Multiple (≥ 3) stool specimens may be needed because oocyst secretion may be intermittent. Diagnosis is sometimes made only when intracellular parasite stages are detected in biopsies of intestinal tissue. 