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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)
Stig Jarle Hansen
Professor, Norwegian University of Life Sciences
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Nigerian soldiers patrol on October 12, 2019, after gunmen suspected of belonging to the Islamic State West Africa Province (ISWAP) group raided the village of Tungushe, killing a soldier and three residents. (Photo by AFP via Getty Images)
