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

itoggle caption Jason Beaubien/NPR

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

itoggle caption Jason Beaubien/NPR

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

itoggle caption Jason Beaubien/NPR

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

itoggle caption Ellen Webber for NPR

Liberian physician Martha Zarway continues work in a temporary clinic while her original facility is disinfected. Tommy Trenchard for NPR hide caption

itoggle caption Tommy Trenchard for NPR

Some potential new Ebola drugs will be tested at treatment centers like this one run by Doctors Without Borders near Monrovia. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images

As the mayor of Cali, Colombia, epidemiologist Rodrigo Guerrero (left) meets with the police once a week to review murder statistics. Courtesy of Prensa Alcaldía de Calí hide caption

itoggle caption Courtesy of Prensa Alcaldía de Calí

Abortions are legal in India. But many are performed by traditional midwives, called dais. Sometimes a dai rubs herbs on a woman's stomach or gives her plants to eat. Poulomi Basu for NPR hide caption

itoggle caption Poulomi Basu for NPR

John Mayer sings to tens of thousands at the 2013 Global Citizen Festival in Central Park. The event is part of an effort to end extreme poverty. Stephen Lovekin/Getty Images hide caption

itoggle caption Stephen Lovekin/Getty Images

Five ambulances, donated by the U.S. to help combat Ebola, are lined up after a ceremony attended by Sierra Leone's president, Ernest Bai Koroma, in Freetown on Sept. 10. Michael Duff/AP hide caption

itoggle caption Michael Duff/AP

Jamira, 11, is an aboriginal girl in Australia. "I like being special," she says. "I like being — you know — different than everyone else." Henrik Nordstrom/I Am Eleven hide caption

itoggle caption Henrik Nordstrom/I Am Eleven

Mina Bestman moved to Georgia from Liberia almost 20 years ago. She owns Mina's Cuisine, a West African restaurant that caters to homesick Liberians. Dustin Chambers for NPR hide caption

itoggle caption Dustin Chambers for NPR