Pig farm workers push live pigs into a large grave in Nipah in 1999. To stop the outbreak, the Malaysian government culled almost 1 million pigs, nearly destroying the country's pork industry.
Lucia Adeng Wek holds her 3-year-old son, Wek Wol Wek, who suffers from malnutrition. They're at a clinic in South Sudan run by Doctors without Borders and were photographed on October 11, 2016.
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Each year thousands of people from around the world tour the Gomantong Cave in Borneo. Although scientists have found a potentially dangerous virus in bats that roost in the cave, no one has ever gotten sick from a trip here.
Sundaygar Moses, now 12, was suffered a gunshot wound as an infant. Due to an infection, his right leg had to be amputated beneath the knee. His new prosthetic is a close match to his skin tone.
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A tuk-tuk speeds down an urban Cambodian road. One deportee used his English language skills — and sense of humor — to build a successful tuk-tuk tour business.
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Once called the "Dutchmen" because of their large noses and large bellies, proboscis monkeys live only in Borneo. Ecosystems that have a lot of diverse animals, like this monkey, also tend to have a lot of diverse viruses.