Examination of Giardia intestinalis with Direct Microscopy and Direct Fluorescent Antibody in Patients with Diarrhea.

By taking the DFA method as a reference, the sensitivity and specificity of the microscopic examination were found to be 44.4% and 99.4%, respectively. The Giardia positivity rate was higher in children, those living in rural areas, those having pets and those using well water as drinking water.