1. Laboratory of Food and Environmental Hygine, Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University
2. Laboratory of Veterinary Hygiene, Graduate School of Veterinary Medicine, Hokkaido University
3. Sapporo Maruyama Zoo
4. Laboratory of Clinical Microbiology, Kyoritsu Seiyaku Corporation
5. Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University
6. Laboratory of Signal Transduction, Department of Cell Biology, Institute for Virus Research, Kyoto University