Academy of Military Sciences - State Key Laboratory of Pathogen and Biosecurity, Chongqing Medical University - Department of Respiratory Medicine, Peking University, School of Public Health, Department of Laboratorial Science and Technology, Academy of Military Sciences - State Key Laboratory of Pathogen and Biosecurity, Academy of Military Sciences - State Key Laboratory of Pathogen and Biosecurity, Academy of Military Sciences - State Key Laboratory of Pathogen and Biosecurity, Academy of Military Sciences - State Key Laboratory of Pathogen and Biosecurity, Academy of Military Sciences - State Key Laboratory of Pathogen and Biosecurity, Academy of Military Sciences - State Key Laboratory of Pathogen and Biosecurity, Academy of Military Sciences - State Key Laboratory of Pathogen and Biosecurity, Chongqing Medical University - Department of Respiratory Medicine, Academy of Military Sciences - Beijing Institute of Microbiology and Epidemiology, Chongqing Medical University - Department of Respiratory Medicine and Academy of Military Sciences - State Key Laboratory of Pathogen and Biosecurity