Jenny Tenorio Gallegos, 35, in Lima, Peru, is being treated for drug-resistant TB. The treatment lasts two years and may rob her of her hearing. Jason Beaubien/NPR hide caption

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Families harvest poppy bulbs in the Badakhshan province of Afghanistan. To collect the opium, they score the bulbs and let the milky substance ooze out. The dried residue contains about 10 percent morphine. David Guttenfelder/AP/National Geographic hide caption

itoggle caption David Guttenfelder/AP/National Geographic

Researchers meet participants: (from left) investigator Jose Luis Roca; Dr. Ernesto Ortiz; study participants Rainer Leon and his mother, Rina Leon Chanbilla; and nurse Jennifer Rampas. Jason Beaubien/NPR hide caption

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Kids in Cape Town socialize as they walk to school. Children in South Africa often don't get to play outside by themselves because of the high rate of violent crimes in some areas. Henk Badenhorst/Getty Images hide caption

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This aerial view shows the effects of gold mining on Peru's rain forest. Courtesy of Gregory Asner, Carnegie Institution for Science hide caption

itoggle caption Courtesy of Gregory Asner, Carnegie Institution for Science

A boot-drying rack sits empty at the Ministry of Defense Ebola Treatment Unit in Monrovia. Jason Beaubien/NPR hide caption

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Moses Lasana recovered from Ebola, but he faces a range of medical issues and waves of pain. "The pain just come from one part of the body to another," he says. Jason Beaubien/NPR hide caption

itoggle caption Jason Beaubien/NPR

More than 1 million people in Peru earn less than the equivalent of about $450 each year. Courtesy of Michael Rizzo/CGAP hide caption

itoggle caption Courtesy of Michael Rizzo/CGAP
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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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Three women in Malawi hold buckets of a fortified corn soy blend. Is this the right food for pregnant teens? Or is nutrition-rich peanut butter better? Courtesy of Project Peanut Butter hide caption

itoggle caption Courtesy of Project Peanut Butter

Caroline Williams is a community organizer in New Kru Town, a suburb of Monrovia. Here's how she got her message through to Liberians about preventing Ebola: "We talk to them, talk to them, talk to them. At last they started listening to us. All the methods that we been giving them, by God's will, they accepted." Jason Beaubien/NPR hide caption

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A nurse holds a young girl who was vaccinated at the kickoff of a national measles prevention campaign in Liberia. Jason Beaubien/NPR hide caption

itoggle caption Jason Beaubien/NPR

Lami Musa, 27, cradles her 5-day-old baby girl at a refugee camp clinic. One of the women rescued from Boko Haram, she says her husband was killed before she was abducted by Islamist extremists. Sunday Alamba/AP hide caption

itoggle caption Sunday Alamba/AP

Worth a little pain? Back in 1990, a school boy got a measles shot in the U.K., and it turns out, he got more than protection against the measles. Photofusion/UIG via Getty Images hide caption

itoggle caption Photofusion/UIG via Getty Images

Lucy Barh, head of the Liberian Midwives Association, says of the impending end of the Ebola outbreak: "It is a joy, it is a joy. And I am so grateful to God. The Lord almighty has love for this nation. That is why we have come to this point." Jason Beaubien/NPR hide caption

itoggle caption Jason Beaubien/NPR