1. Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
2. Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai Institute of Infectious Disease and Biosecurity, State Key Laboratory of Genetic Engineering, MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai, Shanghai, China
3. Geriatric Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
4. Community Health Service Center of Huaxin Town, Shanghai, People’s Republic of China
5. Community Health Service Center of Chonggu Town, Shanghai, People’s Republic of China
6. Community Health Service Center of Baihe Street, Shanghai, People’s Republic of China
7. Community Health Service Center of Xianghuaqiao Street, Shanghai, People’s Republic of China
8. Shanghai High School International Division, Shanghai, People’s Republic of China
9. Shanghai Pinghe Bilingual School, Shanghai, People’s Republic of China
10. Shanghai Huashen Institute of Microbes and Infections, Shanghai, People’s Republic of China
11. National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China
12. Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China