1. Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
2. Laboratory of Veterinary Microbiology, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
3. Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Nihon University, Kanagawa, Japan
4. Koizumi Nest Animal Hospital, Fukuoka, Japan