Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Pathogenic Microbiology and Immunology, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Pathogenic Microbiology and Immunology, affiliation not provided to SSRN, Chinese Center for Disease Control and Prevention (China CDC) - National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC) - National Institute for Viral Disease Control and Prevention, Tsinghua University, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Pathogenic Microbiology and Immunology, Southeast University, affiliation not provided to SSRN, Tsinghua University, affiliation not provided to SSRN, affiliation not provided to SSRN, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Pathogenic Microbiology and Immunology, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Pathogenic Microbiology and Immunology, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Pathogenic Microbiology and Immunology, Shanxi Agricultural University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, China National Center for Bioinformation, Chinese Center for Disease Control and Prevention (China CDC) - National Institute for Viral Disease Control and Prevention, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Tsinghua University, Chinese Center for Disease Control and Prevention (China CDC) - National Institute for Viral Disease Control and Prevention, Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Pathogenic Microbiology and Immunology and Chinese Academy of Sciences (CAS) - CAS Key Laboratory of Pathogenic Microbiology and Immunology