1. State Key Laboratory for Emerging Infectious Diseases, Department of Microbiology and the Research Center of Infection and Immunology, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong SAR, People's Republic of China
2. National Institute of Diagnostics and Vaccine Development in Infectious Diseases
3. School of Life Sciences, Xiamen University, Xiamen, People's Republic of China
4. Virology Division, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38105
5. International Institute of Infection and Immunity, Shantou University, Shantou, People's Republic of China