1. School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
2. CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
3. National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing, China
4. Department of Pathogen Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
5. Laboratory of Protein Engineering and Vaccines, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences (CAS), Tianjin, China