1. Miyazaki Livestock Hygiene Service Center, 3151-1 Shimonaka, Sadowara, Miyazaki, Miyazaki 880-0212, Japan
2. National Institute of Animal Health, National Agriculture and Food Research Organization, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan
3. Yamaguchi Chubu Livestock Hygiene Service Center, 671-5 Kagawa, Yamaguchi, Yamaguchi 754-0897, Japan
4. Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
5. Education and Research Center for Food Animal Health, Gifu University (GeFAH), 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
6. The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan