1. National Institute of Animal Health, National Agriculture and Food Research Organization (NARO), 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan
2. Oita Livestock Hygiene Service Center of Oita Prefecture, 442 Onozuru, Oita, Oita 870-1153, Japan
3. Seibu Livestock Hygiene Service Center of Shizuoka Prefecture, 392 Nakagori, Higashiku, Hamamatsu, Shizuoka 431-3111, Japan
4. Tokushima Livestock Hygiene Service Center of Tokushima Prefecture, 5-94, Minamisyoumachi, Tokushima 770-0045, Japan
5. Chuo Livestock Hygiene Service Center of Kumamoto Prefecture, 1666-1 shizume Jonanmachi, Kumamoto, Kumamoto 861-4215, Japan
6. Chuo Livestock Hygiene Service Center of Niigata Prefecture, 686 Hataya, Nishikan, Niigata, Niigata 959-0423, Japan