New infections in sub-Saharan Africa nearly 25 percent lower in five years , report says . That area remains the region hardest-hit by HIV . Michael Sidibe attributed in part to HIV prevention efforts , World Health Organization official says . New HIV infections have fallen worldwide by 17 percent over the past eight years , a testament to prevention efforts , according to a U.N. report released Tuesday . Report : Number living with HIV has increased , and AIDS deaths have declined over 2008 .
New infections in sub-Saharan Africa nearly 25 percent lower in five years , report says . That area remains the region hardest-hit by HIV . Michael Sidibe attributed in part to HIV prevention efforts , World Health Organization official says . Report : Number living with HIV has increased , and AIDS deaths have declined over 2008 .