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Delta變種病毒肆虐 牛津點名兩款疫苗有效
4 years ago
6
2021年6月23日
路透社報導,牛津大學研究人員,調查已經完成接種AZ或輝瑞BNT兩劑疫苗者,血液中的抗體中和高感染性Delta和Kappa變異病毒的能力,研究成果發表在細胞期刊。研究顯示,這一代疫苗對於這兩種變異病毒,具有防護力。但也警告,血液中的中和抗體濃度,某種程度降低,恐怕會導致若干突破性病例。
最近英格蘭公共衛生署也公布一項分析報告:指出輝瑞新冠疫苗和AZ新冠疫苗,具有高度保護力,避免因為感染Delta變異病毒株而住院的防護率,超過90%。世界衛生組織科學家最近曾經表示,最早出現在印度的Delta變異病毒株,已經成為新冠病毒疾病流行的主要病毒株。
包括泰國、韓國等,最近都警告,變種病毒傳播力強,呼籲要加快接種疫苗。美國白宮首席防疫專家佛奇也說,美國要根除境內的疫情,最大威脅就是Delta變異株。
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