In 2016, the prevalence rate of HIV/AIDS in adults aged 15–49 was 0.3%, relatively low for a developing country.[1] This low prevalence has been maintained, as in 2006, the HIV prevalence in Mexico was estimated at around 0.3% as well. The infected population is remains mainly concentrated among high risk populations, men who have sex with other men, intravenous drug users, and commercial sex workers. This low national prevalence is not reflected in the high-risk populations. The prison population in Mexico, faces a fairly similar low rate of around 0.7%. Among the population of prisoners, around 2% are known to be infected with HIV. Sex workers, male and female, face an HIV prevalence of around 7%. Identifying gay men and men who have sex with other men have a prevalence of 17.4%.[2] The highest risk-factor group is identifying transgender people; about 17.4% of this population is known to be infected with HIV.[1] Around 90% of new infections occur by sex-related methods of transmission. Of these known infected populations, around 60% of living infected people are known to be on anti-retroviral therapy (ART).[1]