June 23, 2011 10:00 AM

Peer education targets South Africa's AIDS epidemic

A peer education effort that has young people teaching other young people about AIDS and prevention is vitally important to the future of South Africa, which has the largest population of HIV-positive people in the world. An estimated 5.6 million South Africans were living with HIV in 2009, out of a population of more than 42 million.

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