1. Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
2. Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
3. State Key Laboratory of Genetic Engineering, Institute of Genetics, Fudan University, Shanghai, China
4. Institute of Biomedical Science, Fudan University, Shanghai, China
5. Ministry of Health and Ministry of Education Key Laboratory of Medical Molecular Virology, Shanghai Medical College, Fudan University, Shanghai, China