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港大研究:Omicron病毒複製快 或引致更多重症

港大研究:Omicron病毒複製快 或引致更多重症

Ta Kung Pao
Thursday, December 16, 2021 03:20:42 AM UTC

  港大醫學院近日研究發現,新型冠狀病毒變異株Omicron相較Delta及原始病毒株,在人類支氣管組織複製得更快。負責研究的公共衞生學院副教授陳志偉今日(16日)在電台節目指,於感染24小時後,Omicron的病毒量比Delta多近70倍,估計比原始病毒株更高近100倍,病毒量越大,傳播力就越高。

  陳志偉認爲短期內Omicron在全球會取代Delta,成爲主流病毒株,而接種新冠疫苗加強劑有助應付Omicron病毒,呼籲市民盡快打第三針,以防止社區出現爆發。

  陳志偉指,研究又發現Omicron於肺部組織的感染就遠比原始病毒株為低,但不代表Omicron帶來的威脅較少,不少重症病人並非只出現肺部感染,亦會有不正常的免疫反應,認爲Omicron有機會引致更多重症及死亡。

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