1. Department of Virology University of Toyama Toyama 930‐0194 Japan
2. Pathogen Genomics Center National Institute of Infectious Diseases 1‐23‐1 Toyama Shinjuku‐ku Tokyo 162‐8640 Japan
3. Department of Dermatology Kanazawa University Graduate School of Medical Science Kanazawa Ishikawa 920‐8640 Japan
4. Department of Gynecology and Obstetrics University of Toyama Toyama 930‐0194 Japan
5. Department of Obstetrics and Gynecology Shakaihoken Takaoka Hospital Takaoka Toyama 933‐0115 Japan
6. Department of Virology Toyama Institute of Health Toyama 939‐0363 Japan