1. Department of Immunology of Basic Medical College, Guizhou Medical University, Guian New Area, 561113, China
2. State Key Laboratory of Pathogen & Biosecurity, Beijing Institute of Microbiology & Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
3. Department of Microbiology of Basic Medical College, Anhui Medical University, Hefei, 230032, China