Oxana and Pavel Rucsineanu fell in love while living at a tuberculosis ward in Balti, Moldova. Jason Beaubien/NPR hide caption

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Hannah Rood, 3, receives an H1N1 vaccine at a clinic in San Pablo, California, during the 2009 swine flu epidemic. Justin Sullivan/Getty Images hide caption

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Prostate cancer is the most common cancer for men in the West, while lung and liver cancers are the top problems in Asia. Courtesy of the World Health Organization hide caption

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Palestinian girls read the Koran at a camp in Gaza City, June 2012. In poor countries, boys are 20 percent more likely than girls to enroll in school, UNICEF says. Mahmud Hams/AFP/Getty Images hide caption

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Government workers exercise at their office in Mexico City, August 2013. To counter the obesity epidemic, the city requires all government employees to do at least 20 minutes of exercise each day. Tomas Bravo/Reuters /Landov hide caption

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Yonta, 6, rests with her brother Leakhena, 4 months, under a mosquito bed net in the Pailin province of Cambodia, where deaths from malaria have decreased sharply in the past two decades. Paula Bronstein/Getty Images hide caption

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Almaz Acha sits with her baby Alentse at her home in the rural community of Sadoye, in southern Ethiopia. Families in rural communities, like this one, have benefited from Ethiopia's health extension program. Julien Behal/PA Photos /Landov hide caption

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A boy stands in the ruins of the leveled a neighborhood in Tacloban. Food and water supplies were almost nonexsistent in the days immediately after the storm. David Gilkey/NPR hide caption

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A polio worker vaccinates a child in Khyber-Pakhtunkhwa province, Pakistan, in October. Arshad Arbab/EPA/Landov hide caption

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Children get tested for malaria at a clinic near the Myanmar border in Sai Yoke, Thailand. Drug-resistant strains of the parasite have appeared in the region over the past few years. Surkree Sukplang/Reuters /Landov hide caption

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Former South African President Nelson Mandela, one of the world's most respected statesmen, died Thursday at 95. Denis Farrell/AP hide caption

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Filipino men stand in line to fill containers with gas in Tacloban, Philippines, on Sunday. The area experienced widespread gas shortages in the wake of Typhoon Haiyan. David Gilkey/NPR hide caption

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