1. Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Youyi Road 1, Yuzhong District, Chongqing, 400016, China
2. Department of Respiratory and Critical Care Medicine, the People’s Hospital of Yubei District, Chongqing, China
3. Department of Respiratory and Critical Care Medicine, the People’s Hospital of Changshou District, Chongqing, China
4. Department of Infectious Disease, the People’s Hospital of Changshou District, Chongqing, China
5. Department of Laboratory Medicine, the People’s Hospital of Changshou District, Chongqing, China
6. Department of Radiology, the People’s Hospital of Changshou District, Chongqing, China
7. Department of Outpatient Service, the People’s Hospital of Changshou District, Chongqing, China
8. Centers for Disease Control of Changshou District, Chongqing, China
9. Department of Infectious Disease, the People’s Hospital of Yubei District, Chongqing, China
10. Department of Radiology, the People’s Hospital of Yubei District, Chongqing, China
11. Department of Respiratory and Critical Care Medicine, the People’s Hospital of Changshou District, Beiguan Road 16, Fengcheng Street, Changshou District, Chongqing, 401220, China