1. Program of Immunology, Institute of Human Virology, Institute of Tuberculosis Control, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
2. Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China
3. Division of Infectious Diseases, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
4. Program of Immunology, Institute of Human Virology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China