1. Comprehensive AIDS Research Center, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing Advanced Innovation Center for Structural Biology, Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing, People’s Republic of China
2. Department of Microbiology and Immunology, The University of Iowa, Iowa City, IA, USA
3. Department of Acute and Tertiary Care, and the Institute for the Study of Host–Pathogen Systems, University of Tennessee Health Science Center, Memphis, TN, USA
4. School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
5. Key Laboratory of Molecular Virology & Immunology, Vaccine Research Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, People’s Republic of China
6. The Ministry of Education Key Laboratory of Protein Science, Beijing Advanced Innovation Center for Structural Biology, Collaborative Innovation Center for Biotherapy, School of Life Sciences, Tsinghua University, Beijing, People’s Republic of China
7. State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China