Despite the significant advances the world has made in reducing HIV, adolescent girls and young women, particularly in Sub-Saharan Africa, have been left behind. According to new data from UNAIDS, adolescent girls and young women account for one in five new infections globally. In some countries in southern and eastern Africa, HIV prevalence among girls and young women is as much as seven times higher than it is among boys and young men. Gender inequality, violence, and poverty make adolescent girls and young women particularly vulnerable to HIV, and those living with HIV face heightened discrimination and violence.