Ributed to the expansion in access to services for preventing mother-to-child transmission of HIV, the primary route of HIV acquisition in children. Sub-Saharan Africa is disproportionately represented in the epidemic with 69 of the global total of people living with HIV (UNAIDS 2012). An estimated 90 of the world's children living with HIV live in sub-Saharan Africa. At the end of 2011, 54 of