Malaria parasites, spread by a mosquito's bite, have started to adapt so the go-to drugs won't knock them out. Daniel Heuclin/Nature Picture Li/Getty Images/Nature Picture Libr hide caption

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Daniel Heuclin/Nature Picture Li/Getty Images/Nature Picture Libr

Earlier this year, thousands of South Sudanese civilians fled an attack by armed gunmen on a displaced persons compound run by the U.N. in the northeastern town of Malakal. Justin Lynch/AFP/Getty Images hide caption

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Justin Lynch/AFP/Getty Images

Amid Growing Unrest, South Sudan Kicks Out Aid Workers

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Babu, 8, works at a brick factory in Narayanganj, Bangladesh. KM Asad/LightRocket via Getty Images hide caption

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KM Asad/LightRocket via Getty Images

Study: Child Laborers In Bangladesh Are Working 64 Hours A Week

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U.N. Secretary-General Ban Ki-moon, pictured during a 2014 visit to Haiti to inaugurate a sanitation campaign. On Thursday, he issued an apology that Haitians have been demanding for six years. Hector Retamal /AFP/Getty Images hide caption

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Anti-Zika advice applied to a wall in front of a housing project in the Puerta de Tierras section of San Juan, Puerto Rico. This public health message was part of an island-wide effort to stem the spread of Zika. Angel Valentin/Getty Images hide caption

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Angel Valentin/Getty Images

Bradley Opere, student body president at the University of North Carolina Chapel Hill, is a trailblazer in a blazer. Jason Beaubien/NPR hide caption

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Jason Beaubien/NPR

Kenyan 'Wonk' Breaks Barriers As Student Body Prez At UNC

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A woman carries a bucket of water on her head on the streets of capital city Bamako during the rainy season in Mali. Andrew Aitchison/Corbis via Getty Images hide caption

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Andrew Aitchison/Corbis via Getty Images

The Rainy Season Strategy To Stop Malaria

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