Currently, there is no definitive gold standard test for diagnosisof S. stercoralis infection. Many parasitological methods have been used for detection of larvae in stool samples,including formalin–ethyl acetate concentration, the Baermann method, the Harada-Mori culture method, and nutrient agar plate culture (APC).2 Parasitological methods are often insensitive,because the parasitic load is usually low and the larval output is minimal.1 To increase the test sensitivity, multiple stool sampling over consecutive days is required. Since the
introduction of APC as a method for detection of S. stercoralis several studies confirmed its superiority to other parasitological methods. However, this method is difficult, time consuming
(requiring 2–3 days), labor intensive, and also requires freshly collected stool and expert microscopists.