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标题: [其他] The new coronavirus infected people in the U.S [打印本页]

作者: lixue123    时间: 2021-4-15 02:48     标题: The new coronavirus infected people in the U.S

The new coronavirus infected people in the U.S. in mid-December 2019, a few weeks before it was officially identified in China and about a month earlier than public health authorities found the first U.S. case, according to a government study published Monday.




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