Hunan Provincial Center for Disease Control and Prevention, Government of the People's Republic of China - Beijing Key Laboratory of Pediatric Organ Failure, Hunan Provincial Center for Disease Control and Prevention, Academy of Military Medical Sciences - Institute of Biotechnology, Government of the People's Republic of China - Beijing Key Laboratory of Pediatric Organ Failure, CanSino Biologics Inc., Guangzhou Medical University - State Key Laboratory of Respiratory Disease, Hunan Provincial Center for Disease Control and Prevention, Government of the People's Republic of China - Beijing Key Laboratory of Pediatric Organ Failure, Academy of Military Medical Sciences - Institute of Biotechnology, CanSino Biologics Inc., Government of the People's Republic of China - Beijing Key Laboratory of Pediatric Organ Failure, Beijing Institute of Biotechnology, CanSino Biologics Inc., CanSino Biologics Inc., Academy of Military Medical Sciences - Institute of Biotechnology, Hunan Provincial Center for Disease Control and Prevention and Southern Medical University - Neonatal Intensive Care Unit

affiliation not provided to SSRN, China National Biotech Group Company Limited, Peking University - Department of Epidemiology and Biostatistics, Hunan Provincial Center for Disease Control and Prevention, Guizhou Center for Disease Control and Prevention, affiliation not provided to SSRN, China National Biotech Group Company Limited, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, China National Biotech Group Company Limited, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Fujian Center for Disease Control and Prevention, Wuhan Institute of Biological Products, Co. Ltd., affiliation not provided to SSRN and National Engineering Technology Research Center of Combination Vaccines