African-American men who have sex with men face a high risk of becoming infected with HIV. Jose Luis Pelaez Inc/Blend Images/Getty Images hide caption

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Gay and bisexual men were banned from donating blood over concern that HIV could contaminate the blood supply. Vesna Andjic/Getty Images hide caption

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FDA Lifts Ban On Blood Donations By Gay And Bisexual Men
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Eduardo Gonzalez is HIV positive. His mother died of AIDS; his father, who's HIV positive, is in jail. The boy lives at Eunime, a Tijuana facility for children whose parents have faced AIDS in their family and who may themselves be infected. Courtesy of Malcolm Linton hide caption

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Ricardo "Cobe" Williams, wearing the cap, served time for attempted murder before joining CeaseFire as a "violence interrupter." Above, he talks with Lil Mikey in a scene from the documentary The Interrupters. Lil Mikey, who'd also been in prison, went on to become an outreach worker with the organization. Aaron Wickenden/Courtesy of Kartemquin Films hide caption

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Louis Arevalo holds his Truvada pills at his home in Los Angeles. The drug can be over 90 percent effective at preventing spread of HIV. Heidi de Marco/Kaiser Health News hide caption

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The bar chart tells all: That's how eighth-graders at Bakgatle Community Junior Secondary School in Botswana can compare the HIV infection rate of older men and of teenage boys. Don Boroughs for NPR hide caption

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In a study in Lesotho, the prospect of earning a cash prize in a lottery motivated young people to practice safe sex. iStockphoto hide caption

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What Might Make Young People Practice Safe Sex? Lottery Tickets!
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Austin, Indiana's needle exchange program is open for business this week, but health workers worry the program will be tough to quickly replicate in other counties. Darron Cummings/AP hide caption

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Indiana Struggles To Control HIV Outbreak Linked To Injected Drug Use
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Volunteer Patrick Pezzati searches yards in Turners Falls, Mass., for discarded heroin needles. Karen Brown/WFCR hide caption

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A Rural Police Chief Asks Citizens To Help Pick Up Used Syringes
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In Philadelphia, some drug users are selling clean needles from needle exchange programs on the street. Researchers say the black market isn't necessarily a bad thing. ImageZoo/Corbis hide caption

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Needle Exchange Program Creates Black Market In Clean Syringes
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Adebisi Alimi, an actor-turned-activist, was the first person ever to come out as gay on Nigerian television. He now shares his story when he speaks up for the rights of the LGBT community. Claire Eggers/NPR hide caption

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