1Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
2Research and Diagnostic Center for Emerging Infectious Diseases, Khon Kaen University, Khon Kaen 40002, Thailand.
3Department of Medicine, Mahasarakham University, Mahasarakham 44150, Thailand.
4Department of Medical Technology, School of Allied Health Sciences and Public Health, Walailak University, Thasala, Nakhon Si Thammarat 80160, Thailand.
5Department of Parasitology, Faculty of Medicine Chiang Mai University, Chiang Mai 50200, Thailand. JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/