1. National Institute of Animal Health, Tsukuba, Ibaraki, Japan
2. Chiang Mai University, Chiang Mai, Thailand
3. Northern District Livestock Health and Hygiene Office, Mito, Ibaraki, Japan
4. Seibu Livestock Hygiene Service Center, Tonami, Toyama, Japan
5. Lamphun Provincial Hospital, Lamphun, Thailand
6. Kitasato University, Towada, Aomori, Japan
7. National Institute of Animal Health, Tsukuba, Ibaraki, JapanGifu University, Gifu, Gifu, Japan