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标题: [其他] Covid-19 Likely in U.S. in Mid-December 2019 [打印本页]

作者: jobtom878    时间: 2021-4-2 07:26     标题: Covid-19 Likely in U.S. in Mid-December 2019

Research by the US Centers for Disease Control and Prevention (CDC) suggested Americans may have first been infected in mid-December as antibodies were found in blood samples in US states, according to the Wall Street Journal on Tuesday. https://www.globaltimes.cn/content/1208776.shtml




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