1. Division of Microbiology, Department of Pathology and Microbiology Nihon University School of Medicine Tokyo Japan
2. Department of Microbiology, Faculty of Medicine Chiang Mai University Chiang Mai Thailand
3. Center of Excellence in Emerging and Re‐emerging Diarrheal Viruses Chiang Mai University Chiang Mai Thailand
4. Faculty of Public Health Chiang Mai University Chiang Mai Thailand
5. Hikita Pediatric Clinic Gunma Japan
6. Infectious Disease Surveillance Center National Institute of Infectious Diseases Tokyo Japan