Augustine Goba (right) heads the laboratory at Kenema Government Hospital in Sierra Leone. He and colleagues analyzed the viral genetics in blood samples from 78 Ebola patients early in the epidemic. Stephen Gire/AP hide caption

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Can you find Australia and Canada? The cartogram, made by Reddit user TeaDranks, scales each country's geographic area by its population. (Click through to see the high-resolution map.) TeaDranks/via Imgur hide caption

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An employee in a Sydney bookshop in 2012 adjusts packaged cigarettes, which have to be sold in identical olive-brown packets bearing the same typeface and largely covered with graphic health warnings. William West/AFP/Getty Images hide caption

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Guinea's Grand Imam, El Hadj Mamadou Saliou Camara, tells his fellow clerics: "If there is any doubt at all, then no one must touch the body." Kevin Leahy /NPR hide caption

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An employee of the drug company Apotex, examines some Ciprofloxacin at the plant in Canada. Cipro is commonly given to travelers for diarrhea. More than 20 million Cipro doses are prescribed each year in the U.S. Getty Images hide caption

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Cellphones are everywhere in the developing world, as this Nairobi street scene shows. Bill and Melinda Gates believe the phones can be used for everything from farmer education to instant banking. Simon Maina/AFP/Getty Images hide caption

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In November, women in El Salvador marched for the freedom of 17 women accused of abortion, including Carmen Guadalupe Vasquez Aldana. She was pardoned this week. Luis Galdamez/Xinhua /Landov hide caption

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Indian sand artist Sudersan Pattnaik touches up his sculpture for World No Tobacco Day at Golden Sea Beach in Puri, India. Asit Kumar/AFP/Getty Images hide caption

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Six-year old Hadja Sow (left) and a classmate on their first day back at school after a prolonged break because of Ebola. Ofeibea Quist-Arcton/NPR hide caption

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Children with albinism, a genetic condition that can cause vision problems, study at a school for the blind in Tanzania. Because albinos are often attacked, the school is a rare sanctuary. Tony Karumba/AFP/Getty Images hide caption

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