1. Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, Tokyo, Japan
2. Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
3. Matsuoka Research Institute for Science, Tokyo, Japan
4. Division of Clinical Laboratory, Obihiro Clinical Laboratory, Hokkaido, Japan
5. Division of Clinical Laboratory, Sapporo Clinical Laboratory, Hokkaido, Japan