1. Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Tokyo, Japan
2. Laboratory of Veterinary Infectious Diseases, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
3. Iskra Industry Co., Ltd., Tokyo, Japan
4. Department of Veterinary Hygiene, Veterinary School, Nippon Veterinary and Life Science University, Tokyo, Japan
5. Precision System Science Co., Ltd., Chiba, Japan