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July 22, 2021
Uncategorized

全美新冠死亡數近20萬 CDC修正指南又刪除

聯邦疾病防治中心(CDC)週一撤除18日在官網發布的防疫指南修正內容,移除新冠病毒「可能」透過飛沫傳播,以及六呎社交距離在特定情況下可能無法遏止病毒擴散等字眼,形容這是「錯誤發布」;這是CDC今年5月以來第三次重大更新。

美國新冠病毒疫情死亡總數逼近20萬人大關。據約翰霍普金斯大學統計,截至20日晚間,新冠染疫死亡人數已達19萬9474人。聯邦疾病防治中心18日悄悄更新官網指南,指病毒在特定情況下可傳播逾六呎,建議室內消毒才是健康關鍵。CDC過去警告,病毒大多透過近距離的大型飛沫傳染,但18日改口說「透過空氣傳播的小粒子」是常見媒介,如今網頁又恢復以前模樣。

對於網頁內容敘述反覆,CDC傳染病副主任巴特勒(Jay Butler)說:「遺憾,修正內容的初稿未經技術審查便上傳」。

科學家在CDC上周認可新冠病毒飛沫傳染能力後,一度感到欣慰,科學家數月來提供證據和研究並呼籲公衛機構承認;專家認為,CDC在18日的更新有助改變政策和公眾行為,促使公共政策反思。如今CDC又改口,將面臨質疑是否為政治考量凌駕科學。CDC一度建議「利用空氣清淨機協助降低室內空間的飛沫細菌」,任何防疫工具都不能取代口罩。

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