隨著時間的推進,武漢肺炎病毒亦變異出不同品種。1077Please respect copyright.PENANAlozITmIm3T1077Please respect copyright.PENANAzXQ6sok5lb
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陸續亦有研究發現,武肺變異品種其躲避疫苗或感染武肺最初版本抗體的能力有所增強。1077Please respect copyright.PENANAqhzJbUim9e
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(圖2)簡略來說,我們身體應對病毒入侵有著兩大招數,抗體及Cytotoxic T cell。1077Please respect copyright.PENANAC0b9CaFF1O1077Please respect copyright.PENANAXQSBXGJysR
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抗體其中之一的功用是能夠阻礙病毒進入人體細胞,使細胞免受病毒感染。1077Please respect copyright.PENANAGvKvodNuW6
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而Cytotoxic T cell其中之一的功用是殺滅已受病毒感染的細胞,情形如同是消防員前往滅火,把已發生的災害清除。1077Please respect copyright.PENANAJCXnx4SZ1C
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(圖3)有研究拿取注射兩劑瑞輝人士三星期後的血液,發現抗體辨認武漢肺炎病毒(巴西變種)的能力約降低了三倍,但負責製造相應Cytotoxic T cell的能力,其沒有因為變種而有所減低。1077Please respect copyright.PENANA67ldcV1miy1077Please respect copyright.PENANA7QWUphp6mH
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儘管抗體的辨認能力減弱,但這並非等於疫苗如同是廢了一樣,皆因抗體的數量亦是重要的指標,其數量足夠的話大可彌補辨認能力的缺失。1077Please respect copyright.PENANA41yV5gLsK8
打個比喻來說,假設我們有20元在手,就算不小心丟掉了3元,還有17元在手,可足以購買10元的蘋果日報。1077Please respect copyright.PENANArOEC1YulyE
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再加上疫苗促使的Cytotoxic T cell產生能力並沒有因變種而有所減弱,可見疫苗亦有其充足的防禦作用。1077Please respect copyright.PENANAuHum47JOwR
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至於輝瑞疫苗應對印度變種的相關研究結果,此研究並沒有作出探討。1077Please respect copyright.PENANAMroibgNAsu
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不過最令人費解的是,科興及國藥疫苗的第三期報告仍未在任何學術期刊中見到任何蹤影。1077Please respect copyright.PENANAZrc8544SWW
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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。1077Please respect copyright.PENANAZL3b5W7Oog
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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/toc1077Please respect copyright.PENANAJg6q6Gzb47
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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。1077Please respect copyright.PENANAlyXThm6SOS
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Link:1077Please respect copyright.PENANAsML8UqNmHo
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1077Please respect copyright.PENANAgTDrqHl1nw
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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。1077Please respect copyright.PENANADvtq8llas9
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Ref1:https://immunology.sciencemag.org/content/6/59/eabj1750
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