美国疾控中心承认:新冠病毒去年12月中旬或已在美出现!
https://news.cctv.com/2020/12/04/ARTIshUBSVE900eC9we1akrJ201204.shtml美国《华尔街日报》11月30日报道,美国疾病控制和预防中心本周一发布的一份政府研究显示,2019年12月中旬,美国就有人感染了新冠病毒,这比中国正式确定新冠病毒提前数周,也比美国公共卫生部门发现首例美国本土确诊病例早大约一个月。
AbstractBackground. SARS-CoV-2, the virus that causes COVID-19 disease, was first identified in Wuhan, China in December 2019, with subsequent worldwide spread.
In the U.S., the first COVID-19 infection was reported on January 19, 2020 in a traveler returning from China. A study results show that it’s possible COVID-19 may have been present in the U.S. in Dec
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The COVID-19 epidemic is believed to have started in late January 2020 in France. Here we report a case of a patient hospitalised in December 2019 in an intensive care unit in a hospital in the north