國藥及科興是中國兩款滅活病毒疫苗。而科興數據其可信性之高,就連公開聲稱戴口罩便沒法說話的梁卓偉院長也怕怕唔敢打。382Please respect copyright.PENANAgSseCrkYr9
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大概是因為中國頭兩款疫苗過於「聲名大噪」,其第三款疫苗康希諾疫苗的關注度則相對較為低。而事實上,康希諾(Cansino)的疫苗設計其實是跟牛津疫苗非常相似。382Please respect copyright.PENANAaY3Lo4Fsbh
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(圖2)圖中為康希諾及牛津疫苗兩款疫苗的扼要原理。382Please respect copyright.PENANAZcSrlmMnPC
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1.疫苗的主要成份為已被削弱複製能力且無害的病毒,內含武肺S蛋白的DNA資訊。382Please respect copyright.PENANATIJodIG3Bx
2. 病毒進入人體細胞。382Please respect copyright.PENANA8v0v4HRDjR
3. 人體細胞利用病毒內含的武肺S蛋白DNA資訊,製作武肺S蛋白。382Please respect copyright.PENANA02lN85oRXW
4.免疫系統的相關細胞辨認武肺S蛋白是為外來之物,因而製作相應的抗體。382Please respect copyright.PENANA58iDpy5l61
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(圖3)因為康希諾疫苗所用的是人類常見的感冒病毒,約4-6成的人早已擁有對抗這感冒病毒的抗體,因此病毒還沒能進入細胞之前(圖2的步驟2),便早已被自身的抗體攔截。382Please respect copyright.PENANAPeVI5kzcHm
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而牛津所用的是黑猩猩所搵到的感冒病毒,原理上人體並沒有對應的抗體,因此亦相對上更易進入細胞。382Please respect copyright.PENANAsGTp1Q8Auw
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以這方面來看,牛津疫苗的設計比康希諾技勝一籌。382Please respect copyright.PENANAwWu7kOJgW6
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最近Bloomberg (Ref3)表示Cansino疫苗的保護效率達65.7%,而它跟Johnson&Johnson的疫苗一樣,均是一次性的方式注射。382Please respect copyright.PENANA5kKdEjUeGd
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延伸閱讀:382Please respect copyright.PENANAXgZ1fYquZR
深入淺出–林鄭注射輝瑞/科興疫苗的最壞後果382Please respect copyright.PENANAWeYpu9LUWu
- 分享自 LIHKG 討論區382Please respect copyright.PENANAM1uLkMSo75
https://lih.kg/2332347382Please respect copyright.PENANAeNb79OyNNA
382Please respect copyright.PENANARaHmxBpNZy
如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。382Please respect copyright.PENANAnBQBGGB0qM
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc382Please respect copyright.PENANAfwvIKYImVg
382Please respect copyright.PENANADQpjDlzT0g
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。382Please respect copyright.PENANAj8yTqYpCx8
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Link:382Please respect copyright.PENANAlDFQCt5JkO
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio382Please respect copyright.PENANA8dRAo4Kv61
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除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。382Please respect copyright.PENANAg3jla35Jj6
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Ref1:https://science.sciencemag.org/content/370/6522/1263382Please respect copyright.PENANAcBSOtuiTBO
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6067905/382Please respect copyright.PENANAXbRg9KXZH9
Ref3:https://www.bloomberg.com/news/articles/2021-02-08/pakistan-says-cansino-s-covid-vaccine-shows-65-7-efficacy382Please respect copyright.PENANAwxyu5Ebqzs
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科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #163
三十秒科學–中國武肺(Cansino)疫苗與牛津疫苗的方別
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