Fan Lirsz_Fan Li 2015, MD, is a PhD student in China CDC. Her research work mainly on HIV-1 molecular epidemiology, the genetic origin and evolution of HIV-1 strains mainly prevailing in China and transmission bottleneck of HIV-1 and HCV. The research program she participated include the National key research program” Genetic variation of HIV strains prevailing in China”, the NSFC-NIH program “The HIV-1 and HCV transmission bottleneck in Chinese injection drug users” and the fourth nationwide HIV-1 molecular epidemiology in China.