美一成人口完成接種 估夏季可達群體免疫
發布時間：2021/03/10 09:00:15
更新時間：2021/03/10 09:02:01
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美國前任政府去年1月31日，正式宣布武肺在美國是公共衛生緊急事件，世衛同年3月11日宣布武肺是全球流行病，時隔一年，全球多國已開始接種疫苗。
美國目前約1成人口已完成接種，65歲以上族群則有3成完成接種，如果保持目前每天平均施打約220萬劑的速度進行的話，美國估計單靠疫苗的話，夏季可達群體免疫。目前單日平均新增確診在6萬以下，但專家都呼籲防疫還是要到位。
（民視新聞網／綜合報導）
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