1. Department of Microbiology, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
2. Department of Virology, Toyama Institute of Health, Toyama, Japan
3. Toyama City Hospital, Toyama, Japan
4. Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
5. Laboratory of Virus Control, Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka, Japan
6. Laboratory of Virus Control, Research Institute for Microbial Diseases (RIMD), Osaka University, Osaka, Japan
7. Toyama Institute of Health, Toyama, Japan