Until LINKAGES Angola developed an instrument to assess a person’s risk for contracting HIV and identify key populations, the Associação de Mulheres Vivendo com o VIH e SIDA, or MWENHO, did not have a way of indicating with certainty if they worked with key populations or not.Through LINKAGES, MWENHO hired peer navigators—persons living with HIV who could mentor others on how to overcome the challenges of starting and adhering to treatment for HIV.