1. OIE Reference Laboratory on Surra, National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080–8555, Japan
2. Department of Protozoology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1–12–4 Sakamoto, Nagasaki 852–8523, Japan
3. Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon Sai 4, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
4. Veterinary Research Institute, Peradeniya, Sri Lanka
5. Department of Paraclinical Studies, School of Veterinary Medicine, University of Zambia, P.O. Box 32379, Lusaka, Zambia
6. Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido 060–0818, Japan