In 1962, a local leader in the Eastern Highlands of Papua New Guinea asks Fore men to stop the sorcery that he believes is killing women and children. Courtesy Shirley Lindenbaum hide caption

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Courtesy Shirley Lindenbaum

Mary Mallon, known as "Typhoid Mary," was immune to the typhoid she carried. Working as a cook, she spread the disease in New York and ended up quarantined on Brother Island (above) for more than two decades. Bettmann/Corbis hide caption

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Kenyan health officials take the temperatures of passengers arriving at the Nairobi airport on Thursday. Kenya has no reported cases of Ebola, but it's a transportation hub and so is on alert. Simon Maina/AFP/Getty Images hide caption

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Simon Maina/AFP/Getty Images

A Virtual Outbreak Offers Hints Of Ebola's Future

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