Police stand guard outside Wuhan Huanan Wholesale Seafood Market, where a number of people related to the market fell ill with a virus in Wuhan, China, Tuesday, Jan. 21, 2020. Heightened precautions were being taken in China and elsewhere Tuesday as governments strove to control the outbreak of the coronavirus, which threatens to grow during the Lunar New Year travel rush. (AP Photo/Dake Kang)
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