|
Junior Member
|
引用:
|
作者cdx
https://tw.news.yahoo.com/%E5%8A%A0%E5%B7%9E%E5%AE%98%E5%93%A1%E6%8C%87%E6%96%B0%E7%97%85%E6%AF%92%E6%97%A9%E5%9C%A8%E5%8E%BB%E5%B9%B412%E6%9C%88%E5%B0%B1%E5%9C%A8%E5%8A%A0%E5%B7%9E%E5%82%B3%E6%92%AD-100424178.html
美國加州聖克拉拉郡郡長同時也是醫學博士的史密斯向媒體表示，新冠病毒很可能從去年12月就在加州傳播。
洛杉磯時報報導，史密斯在一項簡報會上說：新冠病毒一直在社區肆意傳播，可能已經存在相當一段時間。他引用CDC及加州衛生部門等的資料，新冠病毒在加州傳播的時間比大家以為的早得多，很可能從去年12月就開始。
史密斯表示，由於新冠肺炎症狀與流感很類似，而當時美國正處於嚴重的流感季，因此對輕症者來說不會意識到甚至沒有去看醫生；而醫生或許也認為這就是流感。
|
儘摘錄片段，詳細請看原文
https://komonews.com/news/coronavir...lif-in-november
引用:
Seattle researcher debunks theory COVID-19 spread in Calif. in November
The theory went that COVID-19 might have begun spreading in California in November, masked as an early flu season. And if so, many Californians would have already had the virus and now be immune to the current outbreak, thus limiting the number of cases.
Bedford says evidence from his Seattle Flu Study shows that theory is incorrect. The study had collected virus samples from volunteers around the Seattle area as part of an original goal of tracking the spread of flu and other respiratory ailments over the fall and winter.
The flu study team went back and retested their samples between Jan. 1 and March 10 from patients who reported acute respiratory issues and flu-like symptoms.
"We tested 3600 samples collected in Jan 2020 for COVID-19 status and found zero positives," Bedford tweeted. "We tested 3308 samples collected in Feb 2020 and found a first positive on Feb 21 with a total of 10 samples testing positive in Feb."
He added that even going back into October, they study found a variety of respiratory illnesses circulating in the region, from flu, rhinovirus and other seasonal coronaviruses that are "easily distinguishable" from COVID-19.
"There is no chance of confusion between these in our assay," Bedford tweeted. "It's empirically true that the Seattle flu season in Oct through Jan was not the result of COVID-19. We would have seen it in these data. Given travel connections between WA and CA there is no way that COVID-19 was widely circulating in CA, but we see zero cases in WA."
In addition, tracing the virus' genetic roots also paints a clear picture that the virus did not enter the United States until January.
"There were multiple paths the virus took to reach the US. There was a direct introduction from China that occurred in late Jan and there were multiple introductions from the European epidemic that occurred during the course of Feb.," Bedford tweeted, adding the data shows the California outbreak fell in line with the rest of the U.S epidemic. "There is no chance SARS-CoV-2 was circulating in California in fall 2019. Circulation in CA started in Jan or Feb 2020."
|
Google 翻譯
引用:
西雅圖研究人員對11月在加利福尼亞傳播的COVID-19理論進行了揭穿
從理論上講，COVID-19可能已於11月開始在加利福尼亞傳播，被掩蓋為早期流感季節。如果是這樣，許多加利福尼亞人將已經感染了這種病毒，現在可以抵抗當前的疫情，從而限制了病例數。
貝德福德說，他在西雅圖流感研究中的證據表明該理論是錯誤的。該研究從西雅圖地區的志願者那裡收集了病毒樣本，這是追踪秋季和冬季流感和其他呼吸系統疾病蔓延的最初目標的一部分。
流感研究小組返回並在1月1日至3月10日之間對報告了急性呼吸道問題和類似流感症狀的患者的樣本進行了重新測試。
貝德福德在推特上說：“我們測試了2020年1月收集的3600個樣本的COVID-19狀況，發現零陽性。” “我們測試了2020年2月收集的3308個樣本，並於2月21日發現了第一個陽性樣本，2月共有10個樣本呈陽性。”
他補充說，甚至可以追溯到十月，他們的研究還發現了該地區流行的各種呼吸道疾病，包括流感，鼻病毒和其他季節性冠狀病毒，這些疾病可以很容易地與COVID-19區分開。
貝德福德在推特上說：“在我們的檢測中，這兩者之間沒有混淆的可能。” “從經驗上講，10月至1月的西雅圖流感季節並不是COVID-19的結果。我們會在這些數據中看到它。鑑於西澳州和CA之間的旅行聯繫，COVID-19不可能在CA，但在WA中，這種情況為零。”
此外，追踪病毒的遺傳根源還可以清楚地看出該病毒直到一月份才進入美國。
貝德福德在推特上說：“該病毒有多種途徑到達美國。在一月下旬，有來自中國的直接傳入，二月期間有歐洲流行的多種傳入。”表明加利福尼亞的爆發與美國其他地方的流行同步。 “ SARS-CoV-2不可能在2019年秋季在加利福尼亞發行。CA的發行於2020年1月或2月開始。”
|
|