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Journal of Clinical Microbiology, April 2005, p. 1932-1933, Vol. 43, No. 4
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.4.1932-1933.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Comparison of the Quantitative Formalin Ethyl Acetate Concentration Technique and Agar Plate Culture for Diagnosis of Human Strongyloidiasis

P. M. Intapan,1* W. Maleewong,1 T. Wongsaroj,2 S. Singthong,3 and N. Morakote4

Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen,1 Bureau of General Communicable Diseases,2 Office of Prevention and Control Diseases Region VI, Department of Disease Control, Ministry of Public Health, Nonthaburi,3 Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand4

Received 29 August 2004/ Returned for modification 29 September 2004/ Accepted 7 December 2004

The quantitative formalin ethyl acetate concentration technique (QFEC) was compared to agar plate culture (APC) for the detection of Strongyloides stercoralis larvae. QFEC could substitute for APC only when the parasite load was higher than 50 larvae per g of stool. This study serves as a good reminder to those conducting stool exams about the sensitivity and specificity limitations of both techniques.


* Corresponding author. Mailing address: Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand. Phone: 66-43-348387. Fax: 66-43-202475. E-mail: pewpan{at}kku.ac.th.


Journal of Clinical Microbiology, April 2005, p. 1932-1933, Vol. 43, No. 4
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.4.1932-1933.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.