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The P4 laboratory, on the campus of the Wuhan Institute of Virology, in Wuhan, in China's central Hubei province. (Hector Retamal/AFP via Getty Images)
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An Indian Muslim devotee offers prayers during Eid al-Adha at Jama Masjid in New Delhi on October 6, 2014 (Photo credit should read Chandan Khanna/AFP via Getty Images)
