Titolo: AIDS-AFRICA-HEALTH-WOMEN

Descrizione: This picture taken on July 20, 2012 at Wits Reproductive Health and HIV Institute (WRHI) in Johannesburg shows a Dapivirine vaginal ring to be used in an HIV prevention trial on July 20, 2012 in Johannesburg. South Africa is launching clinical trials for a vaginal ring which releases antiretroviral drugs into the body, warding off infection. AFP PHOTO / STEPHANE DE SAKUTIN (Photo credit should read STEPHANE DE SAKUTIN/AFP/Getty Images)

Crediti immagine: AFP/Getty Images - © 2012 AFP