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TOPSHOT - This photo taken on January 26, 2020 shows workers producing facemasks at a factory in Yangzhou in China's eastern Jiangsu province, to support the supply of medical materials during a deadly virus outbreak which began in Wuhan. - At least 81 people have died since the new strain of coronavirus emerged in China's Wuhan, and millions are now under an effective quarantine, with all flights in and out of the city grounded and a ban on Chinese tour groups domestically and abroad. (Photo by STR / AFP) / China OUT (Photo by STR/AFP via Getty Images)

TOPSHOT - This photo taken on January 26, 2020 shows workers producing facemasks at a factory in Yangzhou in China's eastern Jiangsu province, to support the supply of medical materials during a deadly virus outbreak which began in Wuhan. - At least 81 people have died since the new strain of coronavirus emerged in China's Wuhan, and millions are now under an effective quarantine, with all flights in and out of the city grounded and a ban on Chinese tour groups domestically and abroad. (Photo by STR / AFP) / China OUT (Photo by STR/AFP via Getty Images)