Woman holding the dapivirine vaginal ring. Andrew Loxley/International Partnership for Microbicides hide caption

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The HIV Trap: A Woman's Lack Of Control

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By hanging a caged chicken near mosquito traps in bedrooms in three Ethiopian villages, researchers hoped to learn how the insects react to the scent of a fowl. Kassahun Jaleta/Courtesy of Rickard Ignell hide caption

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Catherine Msimango, 18, takes a nightly pill to protect her against HIV. "It's all about my safety," says the South African high schooler. Jason Beaubien/NPR hide caption

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Why Healthy Teens Are Taking A Daily Anti-AIDS Pill

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The alleyway known as the Beira "corridor" is part of the city's informal prostitution zone, where sex workers wait to meet clients. Gianluigi Guercia/AFP/Getty Images hide caption

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Fighting HIV In Two High-Risk Groups: Sex Workers And Truck Drivers

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Cleopas Kapembwa Chisanga of Zambia, who is HIV positive, is the subject of a new video and will be broadcasting from this week's International AIDS Conference in Durban, South Africa. Sydelle Willow Smith/International Aids Society hide caption

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Hugo d'Alessandro is pictured with his mother and grandmother. He was diagnosed with cancer when he was 10 years old. Treatment is difficult in Venezuela; his mother says the drugs he needs aren't always available. Lulu Garcia-Navarro/NPR hide caption

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Is Venezuela Having A Health Care Crisis? It Depends On Whom You Ask

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Aedes aegypti mosquitoes in a lab in Recife, Brazil. Mario Tama/Getty Images hide caption

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How An Electric Shock Could One Day Protect You From Zika

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Mifeprex, formerly called RU-486, is the brand name of the abortion pill called mifepristone. Michelle Del Guercio hide caption

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Has Zika Pushed More Women Toward Illegal Abortions?

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The picture was taken in 2006 in the Democratic Republic of Congo, after Evelyn Amony was rescued. Holding her youngest daughter, she was at a meeting to negotiate with members of the Lord's Resistance Army. The two men, who had also been abducted, are her relatives. The faces of the men and baby are blurred to protect their identities. Courtesy of Erin Baines hide caption

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People walk past graffiti art in the Providencia community of Rio, a favela that dates back to 1897. Mario Tama/Getty Images hide caption

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Is The Risk Of Catching Zika Greater In Poor Neighborhoods?

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