1. Animal Research Center Hokkaido Research Organization Hokkaido Japan
2. Division of Transboundary Animal Disease Research, National Institute of Animal Health National Agriculture and Food Research Organization Ibaraki Japan
3. OAT Agrio Co., Ltd. Tokyo Japan
4. Research Center for Global Agromedicine Obihiro University of Agriculture and Veterinary Medicine Hokkaido Japan
5. Tokachi Livestock Hygiene Service Center Hokkaido Prefectural Government Hokkaido Japan
6. Department of Veterinary Medicine Obihiro University of Agriculture and Veterinary Medicine Hokkaido Japan
7. Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine Cornell University Ithaca New York