1. National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Nishi–2–13 Inada-cho, Obihiro, Hokkaido 080–8555, Japan
2. Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3–18–8 Ueda, Morioka 020–8550, Japan
3. Research Fellow of the Japan Society for the Promotion of Science
4. Department of Basic Veterinary Science, United Graduate School of Veterinary Science, Gifu University, 1–1 Yanagido, Gifu 501–1193, Japan
5. Department of Pharmacology and Parasitology, University of Veterinary Science, Yezin, Naypyidaw 05282, Myanmar
6. Livestock Breeding and Veterinary Department, Insein, Yangon 11011, Myanmar
7. Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 8, Sapporo, Hokkaido 060–0818, Japan