1. Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan;
2. Graduate Program in Biomedical Sciences, Faculty of Allied Health Sciences, Thammasat University, Pathumthani, Thailand;
3. Kantipur College of Medical Sciences, Kathmandu, Nepal;
4. National Public Health Laboratory, Ministry of Health and Population, Kathmandu, Nepal;
5. Walter Reed AFRIMS Research Unit, Kathmandu, Nepal;
6. Tribhuvan University, Kathmandu, Nepal;
7. Virology Department, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand;
8. International Vaccine Institute, Seoul, Republic of Korea;
9. Chulabhorn International College of Medicine, Thammasat University, Pathumthani, Thailand