1 NHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
2 CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.
3 Beijing Institute of Biological Products Company Limited, Beijing 100176, China.
4 National Institute for Food and Drug Control, Beijing, China.
5 Beijing Institute of Biological Products Company Limited, Beijing 100176, China. Electronic address: yangxiaoming@sinopharm.com.