1. Department of Medical Microbiology, School of Medicine, Wuhan University, Wuhan 430071, P.R. China
2. College of Life Sciences, Wuhan University, Wuhan 430072, P.R. China
3. Department of Infectious Diseases, Ren-Min Hospital of Wuhan University, Wuhan 430060, P.R. China
4. Hubei Province Key Laboratory of Allergy and Immunology, Wuhan 430071, P.R. China