1. National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
2. Henan Provincial Disease Control and Prevention, People’s Republic of China, Henan
3. Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
4. National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
5. NHC Key laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
6. Chinese Field Epidemiology Training Program, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
7. Nanning Center for Disease Control and Prevention, Guangxi, People's Republic of China
8. Development Center for Medicine and Science &Technology, National Health Commission, People’s Republic of China, Beijing
9. Key Laboratory of Medical Molecular Virology of MoE & MoH, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai, People’s Republic of China
10. Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
11. State Key Laboratory of Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China