1. Department of Infectious Diseases, Affiliated Hospital of Zunyi Medical University, 201 Dalian Street, Guizhou 563003, China
2. Department of Infectious Diseases, Suining Central Hospital, 127 Desheng Street, Suining, Sichuan 629000, China
3. Department of Infectious Diseases, Xishui County People’s Hospital, Xiangjiang Street, Xishui, Guizhou 564600, China