Rukshona Saidova, 12, lives with both HIV and tuberculosis. She can't walk right now because the diseases have atrophied muscles in her legs. Jason Beaubien/NPR hide caption

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Nurse Tina Martin checks on Orion Qurbonaliev, 4, who has tuberculosis. Orion's grandmother, Kholbibi Abdulloeva, also has TB. Jason Beaubien/NPR hide caption

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Oxana and Pavel Rucsineanu walk to the tuberculosis hospital in Balti, Moldova. Oxana and their new baby live in an apartment, but Pavel still has to stay at the TB ward, fighting for his life. Jason Beaubien/NPR hide caption

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Michelle Williams (center) and two daughters visit the grave of her mother, Judy Williams, at Fairview Cemetery in Hyde Park, Mass., on May 11. Judy died in 2011. Ellen Webber for NPR hide caption

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President Obama meets with Emory University doctors and health care workers during his visit Tuesday to the Centers for Disease Control and Prevention in Atlanta. Mandel Ngan/AFP/Getty Images hide caption

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Dr. Kent Brantly was medical director at Monrovia's only Ebola treatment center when he fell ill with the disease in July. He survived after being evacuated and treated in the United States. Courtesy of Samaritan's Purse hide caption

itoggle caption Courtesy of Samaritan's Purse

Jung Ha-yoon, 2, and other children in Seoul, South Korea, enjoy playing around (and in) ceramic jars. The country's infant mortality rate dropped 91 percent between 1972 and 2012. Jacquelyn Martin/AP hide caption

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President Obama spoke Tuesday about the U.S. plan to fight the Ebola epidemic in West Africa, speaking at the Centers for Disease Control and Prevention. The White House plan reportedly includes deploying 3,000 U.S. military personnel and training health care providers in Liberia. Mandel Ngan/AFP/Getty Images hide caption

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Do you know what the deadliest disease is? Hint: It's not Ebola (viral particles seen here in a digitally colorized microscopic image, at top right, along with similar depictions of other contagious diseases) NPR Composite/CDC hide caption

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Workers unload medical supplies to fight the Ebola epidemic from a USAID cargo flight in Harbel, Liberia, in August. John Moore/Getty Images hide caption

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A health worker speaks with families in a classroom now used as Ebola isolation ward in Monrovia, Liberia. Ebola-stricken West Africa needs more health staff and more medical facilities. John Moore/Getty Images hide caption

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