自武肺爆發後,能否生產成為對抗武肺的疫苗一直是備受關注的議題。1780Please respect copyright.PENANAE1bjdcycJw
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現今設計疫苗的方針主要分成四大類,1780Please respect copyright.PENANAjIPDRVKxEx
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1)直接以RNA/DNA的方式傳遞武肺部份組件,促使人體生產抗體。1780Please respect copyright.PENANAEW4fmInmij
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2)傳遞武肺部份組件蛋白質,促使人體生產抗體。1780Please respect copyright.PENANAYUxVM9QLF9
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3)依靠病毒載體傳遞武肺部份組件,促使人體生產抗體。1780Please respect copyright.PENANAco0ugmKCj5
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4)傳遞感染力備受削弱的武肺病毒,促使人體生產抗體。1780Please respect copyright.PENANA2K2h0u12pS
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現況還有第五選項,透過注射其他現今疫苗試圖獲取抵禦武肺的能力,澳洲正在進行卡介苗的臨床測試,觀察可否借助現有疫苗來對抗武肺;1780Please respect copyright.PENANA11NYNcRdHj
個人認為此方法有些許偏離主流,所以故意沒有將它歸納成一大類。1780Please respect copyright.PENANAkyK8kj2kWf
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而此Post主要談及第4類疫苗的一項最新發展,第1、2、3大類會再另開新Post談及。1780Please respect copyright.PENANAf0z7NeQM1M
最近7月3日一份刊登於Science的學術文章(https://science.sciencemag.org/content/369/6499/77)指出,1780Please respect copyright.PENANAKsPMDZIoFI
一隻名為PicoVacc的疫苗成功在老鼠及彌猴身上製造對抗武肺的抗體,其中並無引起可見的不良效果。1780Please respect copyright.PENANA7qL44iTLMR
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PicoVacc疫苗的製造方式,是從一名進入深切治療部的中國病患肺部體液中抽取病毒,經過數輪實驗室細胞的培植,最後加入化學物消減病毒的感染力和多重過濾,最終取得弱化的武肺病毒。1780Please respect copyright.PENANAIekeoo0bH4
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將弱化的武肺病毒(PicoVacc疫苗)打入老鼠及彌猴體內一星期後,牠們的體液各自均含有對抗武肺的抗體。1780Please respect copyright.PENANAshnuzxCIkr
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箇中一道重要結果指出,老鼠體液的抗體能夠對抗世上至少十款真實存在著武肺品種,而現今經常談論的D614武肺品種亦能成功對抗得到。1780Please respect copyright.PENANACoIcS8h5j2
雖然報告一系列的結果均非常正面,但一日未有進行人類臨床研究實驗的話,一日未可以寫包單可以疫苗可以為人類帶來武肺免疫力之餘,又不會引起任何不良反應。1780Please respect copyright.PENANAwFlNzqYEKG
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無論如何,以樂觀角度來審視的話,現時至少有一隻疫苗有確切證據成功在動物身上製造出抵禦D614武肺品種的抗體。1780Please respect copyright.PENANAiYBT8P9irv
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**PicoVacc為中國Sinovac旗下產品。