1. Department of Virology II, National Institute of Infectious Diseases, Japan
2. Division of Virology, Institute for Medical Research, Malaysia
3. Laboratory of Virology, Osaka Prefectural Institute of Public Health, Japan
4. Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Japan
5. School of Medical Technology, and Graduate Institute of Clinical Medicine, Chang Gung University College of Medicine and Memorial Hospital, Taiwan
6. Department of Virology, National Institute of Preventive Medicine, Department of Health, Taiwan
7. School of Medical Technology, National Taiwan University College of Medicine, Taiwan