1. Department of MicrobiologyFaculty of Medicine, Chiang Mai University Chiang Mai Thailand
2. Center of Excellence in Emerging and Re‐emerging Diarrheal VirusesChiang Mai University Chiang Mai Thailand
3. Department of VirologyTohoku University Graduate School of Medicine Sendai Japan
4. Division of Microbiology, Department of Pathology and MicrobiologyNihon University School of Medicine Tokyo Japan
5. Department of Developmental Medical Sciences, School of International Health, Graduate School of MedicineThe University of Tokyo Tokyo Japan