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September 7, 2023
美國要聞

莫德納稱其更新新冠加強針可對抗新變種

製藥商莫德納周三發布的一份新聞稿中表示,其最新的新冠疫苗加強針可以對抗 Omicron 亞變體 BA.2.86 ,預計該加強針最快本星期獲得聯邦食藥局 FDA 的批准。

莫德納是首家新冠疫苗製造商發佈有關更新加強針針對新變種的有效性數據。莫德納表示,更新加強針產生了針對 BA.2.86 的強烈抗體反應。然而,莫德納提供基於血液樣本的數據尚未經過外部科學家的審查。

目前 BA.2.86 未有在全美廣泛傳播,但由於其突變數量較多,已引起專家和衛生官員的關注。而隨著幾種新變種的傳播,全美的新冠病例和住院人數目前正在上升。

聯邦疾病控制與預防中心 CDC 表示,BA.2.86 可能更容易在感染過新冠病毒或接種過疫苗的人中引起感染,但同時補充說,沒有證據表明這一點病毒可能導致更嚴重的疾病。

本星期公佈的實驗室研究數據也表明,BA.2.86 的傳染性和免疫侵襲性可能比之前擔心的要低。

CDC 表示,目前全美病例和住院人數的增加很可能是由 XBB 系病毒感染所驅動。

預計莫德納的更新加強針最早將於本星期獲得聯邦食品和藥物管理局 FDA 的批准。

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