"The report is very sobering," says Dr. Peter Piot, who directed the study. Today five young people contract HIV/AIDS somewhere in the world every minute. At highest risk are African women ages 15 to 24; they are two to three times as likely as young men to be HIV positive, owing to their having sex with older male partners--a heavily infected population in Africa.
Still, Piot saw some signs of hope. Uganda, the first African country to adopt a nationwide prevention program stressing safe sex with condoms, has seen its HIV-infection rate among teenage girls drop from almost 5% in 1990 to 1.5% today.