1. Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing, People’s Republic of China
2. Tsinghua University-Peking University Joint Centre for Life Sciences, Tsinghua University, Beijing, People’s Republic of China
3. Department of Pulmonary and Critical Care Medicine, Centre of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
4. Laboratory of Clinical Microbiology and Infectious Diseases, China-Japan Friendship Hospital, National Clinical Research Centre for Respiratory Medicine, Beijing, People’s Republic of China
5. Institute of Respiratory Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
6. Department of Pulmonary and Critical Care Medicine, Clinical Centre for Pulmonary Infections, Capital Medical University, Beijing, People’s Republic of China
7. Department of Respiratory and Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China
8. Department of Respiratory Medicine, Harbin Medical University, Harbin, People’s Republic of China
9. Department of Respiratory Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
10. NHC Key Laboratory of Biosafety, Chinese Centre for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, People’s Republic of China