1. State Key Laboratory for Agro-Biotechnology, Department of Microbiology and Immunology, College of Biological Science, China Agricultural University, Beijing, China.
2. Department of Immunology and Key Laboratory of Medical Immunology of Ministry of Health, Peking University Health Science Center, Beijing, China.
3. Key Laboratory of Medical Molecular Virology of Ministry of Health, Fudan University Shanghai Medical College, Shanghai, China.