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A Pakistani technician takes samples in a laboratory alongside a ribbon promoting the forthcoming World Aids Day in Islamabad on November 30, 2013. The World Health Organization have issued new recommendations to address the specific needs of adolescents both for those living with HIV and those who are at risk of infection. AFP PHOTO/Farooq NAEEM        (Photo credit should read FAROOQ NAEEM/AFP/Getty Images)
A Pakistani technician takes samples in a laboratory alongside a ribbon promoting the forthcoming World Aids Day in Islamabad on November 30, 2013. The World Health Organization have issued new recommendations to address the specific needs of adolescents both for those living with HIV and those who are at risk of infection. AFP PHOTO/Farooq NAEEM        (Photo credit should read FAROOQ NAEEM/AFP/Getty Images)

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    The turbulent history of HIV/AIDS

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The turbulent history of HIV/AIDS

First documented in the US in 1981, HIV now infects more than 36 million people worldwide.

The turbulent history of HIV/AIDS

First documented in the US in 1981, HIV now infects more than 36 million people worldwide.