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新冠疫苗/研究指南非變種病毒 可突破復必泰防禦
 

新冠疫苗/研究指南非變種病毒 可突破復必泰防禦

本港至今逾21.3萬人已接種復必泰新冠疫苗,其研發藥廠輝瑞和BioNTech 早前曾指其對南非變種病毒有效,但以色列有研究指出,變種病毒可突破疫苗防禦。

本港累計31宗帶E484K病毒株 , 傳播力更強可削弱疫苗效用 , 該研究由特拉維夫大學及當地保健服務供應商Clalit 合作進行,招募800名新冠肺炎患者,一半接種復必泰後確診,另一半無接種。結果顯示,無接種疫苗的組別中,有0.7%人感染南非變種病毒,而已接種的組別則有5.4%人感染變種病毒,兩者相差近8倍。研究認為,結果顯示南非變種病毒在某程度上可突破疫苗的防禦。

據輝瑞和BioNTech早前的測試,南非800名研究參與者中,接種疫苗組未有感染,接種安慰劑組別則有9人感染,當中6人屬南非變種病毒株,另有研究指疫苗對南非變種病毒保護率較低,但仍有保護作用。

 

資料來源:晴報 11-04-2021

選文來自:香港E大夫/醫大夫

 

 

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