Affiliation: | a Laboratory of Parasitic Diseases, National Institute of Animal Health, National Agricultural and Food Research Organization, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan b National Research Centre for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan c Laboratory of Emerging Infectious Diseases, School of Frontier Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima 890-0065, Japan |