1. Fujian Medical University; Fuzhou Fujian Province P.R. China
2. AIDS Institute and Department of Microbiology, State Key laboratory of Emerging Infectious Diseases, Li Ka Shing Faculty of Medicine; The University of Hong Kong; Hong Kong SAR P.R. China
3. HKU-AIDS Institute Shenzhen Research Laboratory and AIDS Clinical Research Laboratory, Guangdong Key Laboratory of Emerging Infectious Diseases and Shenzhen Key Laboratory of Infection and Immunity, Shenzhen Third People's Hospital; Guangdong Medical College; Shenzhen P.R. China
4. Fujian Center for Disease Control and Prevention; Fujian Province P.R. China
5. Fuzhou Center for Disease Control and Prevention; Fuzhou Fujian Province P.R. China