1 College of Life Science and Bioengineering, Beijing University of Technology, Beijing 100022, China; State Key Laboratory of Infection Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
2 State Key Laboratory of Infection Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.