CD4 and AIDS: In particular, our estimation gives that there are 6596 HIV/AIDS infected individuals among MSM receiving antiviral therapy in 2011, which takes up to 55% of the diagnosed individuals among MSM with CD4+ T count less than 350 cells per μL, whereas, estimation from Ministry of Health, people's republic of China stated that the antiviral therapy coverage rate has reached 73.5% in 2011 [2].