By Betsy McKay
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. The findings significantly strengthen evidence suggesting the virus was spreading around the world well before public health authorities and researchers became aware, upending initial thinking about how early and quickly it emerged. Scientists at the U.S. Centers for Disease Control and Prevention found evidence of infection in 106 of 7,389 blood donations collected by the American Red Cross from residents in nine states across the U.S., according to the study published online in the journal Clinical Infectious Diseases. The scientists based their study on blood samples that the American Red Cross collected between Dec. 13 and Jan. 17 and later sent to the CDC for testing to see if any had antibodies to the new coronavirus, which is named SARS-CoV-2.
https://www.wsj.com/livecoverage/covid-2020-12-01/card/XPO1HP50VuM73qUrD1ip
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CDC科學家報告稱Covid-19可能於2019年12月中旬在美國出現
根據周一發布的一項政府研究,2019年12月中旬,新的冠狀病毒感染了美國人,這是在中國正式發現冠狀病毒之前的幾週,比公共衛生部門發現第一例美國病例早一個月。
這些發現大大增強了證據,表明該病毒早在公共衛生當局和研究人員意識到之前就已經在世界範圍內傳播,顛覆了人們對這種病毒出現的時間和速度的最初思考。
根據在線發表在《臨床傳染病》雜誌上的研究,美國疾病控制與預防中心的科學家在美國紅十字會從全美9個州的居民那裡收集的7389份獻血中,有106份發現了感染的證據。
科學家的研究基於美國紅十字會在12月13日至1月17日之間收集的血液樣本,然後將其送至CDC進行測試,以查看是否有針對這種新型冠狀病毒的抗體,該抗體名為SARS-CoV-2。
作者寫道:“ SARS-CoV-2感染可能於2019年12月在美國出現,早於先前的認識。”