高端研發新冠疫苗 傳捷報 - 股票

By Michael
at 2021-03-24T10:15
at 2021-03-24T10:15
Table of Contents
原文標題:高端研發新冠疫苗 傳捷報
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原文連結:
https://bit.ly/3lHZM03
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發布時間:2021-03-24 00:06
(請以原文網頁/報紙之發布時間為準)
原文內容:
高端疫苗(6547)昨(23)日發布開發新冠肺炎候選疫苗對不同病毒變異株的評估數據,經
大鼠與人體臨床試驗受試者血清進行抗體中和效價評估後,發現公司的候選疫苗對各流行變
異株均可呈現優異中和效價。
新冠肺炎近月來在國際上出現不同變異株的流傳,引發全球關注,並擔心已開發的疫苗是否
足以對抗各類變異株。高端說明,面對南非變種病毒,該公司的新冠候選疫苗打第三劑後應
可克服。
高端疫苗昨天在官方網站公布,公司開發的新冠候選疫苗,已於MedRxiv期刊刊載對不同病
毒變異株的中和抗體效價數據。研究發現,高端新冠對英國、歐洲等流行變異株均可呈現優
異中和效價,其中對B.1.351南非株之中和效價更有相對降低趨勢,此發現與國際其他疫苗
開發案如Moderna、Pfizer等公司的趨勢一致。
根據高端的網站資訊指出,與國內外疫苗開發案後發現,高端的全長棘蛋白抗原因包含RBD
和S1/S2結構域,具廣泛保護力,可有效避免病毒免疫脫逃。
比較Novavax、Moderna、Pfizer/BNT等國際公司的疫苗,其疫苗抗原也皆採全長棘蛋白基因
編碼,相較其他只含RBD抗原的疫苗,全長棘蛋白抗原的疫苗較能抵抗病毒的免疫脫逃 ,因
此有較高的抗變異性。
高端指出,目前Pfizer 和Moderna的疫苗對歐洲、英國與南非等變異株顯示具一定保護效力
,雖然對棘手南非變異株的中和抗體效價下降約六至十倍後仍具保護力,但Pfizer和Modern
a現正評估透過施打二劑基礎劑+第三劑追加免疫的方式,提升對變異株的保護效力。
疫情指揮中心發言人莊人祥表示,國內已有一家疫苗的二期試驗,在健康成人與65歲以上老
人族群業已全數收案完畢。應可率先達成6月取得EUA緊急藥證之目標。
心得/評論: ※必需填寫滿20字
為了對抗變異病毒
疫苗可能打到第三劑
輝瑞跟莫德納也這麼評估
讚
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