http://www.who.int/hiv/pub/guidelines/keypopulations/en/

Since the beginning of the epidemic, WHO has led the global health sector response to HIV. As a Cosponsor of the UNAIDS, WHO takes the lead on the priority areas of HIV treatment and care, and HIV/tuberculosis co-infection, and jointly coordinates with UNICEF the work on prevention of mother-to-child transmission of HIV. The Department works to support WHO Member States in enhancing their action to implement the Global health sector strategy on HIV for 2011-2015.