1 Tropical Diseases Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
2 Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
3 Institute of Systematics and Ecology of Animals, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630091, Russia.
4 Tropical Diseases Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand. Electronic address: yukifuminawa@gmail.com.