Red Cross volunteers prepare to bury the body of an Ebola victim in Pendembu, Sierra Leone, early this month. Tommy Trenchard for NPR hide caption

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A neighborhood resident walks through a building in Timbuktu, used by al-Qaida-linked jihadi fighters for more than a year. Last year, The Associated Press found al-Qaida documents in the building. Rukmini Callimachi/AP hide caption

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Eduard Egarter-Vigl (left) and Albert Zink (right) sample Italy's mummified iceman for genetic analysis in November 2010. Previous research suggests he, too, was predisposed to heart disease. Samadelli Marco/EURAC hide caption

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Medical workers treat Ebola patients at the Eternal Love Winning Africa hospital in Monrovia, Liberia. Three workers at the hospital, including Dr. Kent Brantly (left), have tested positive for Ebola. Courtesy of Samaritan's Purse hide caption

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