季節性流感造成全球每年約290,000-650,000人的死亡。829Please respect copyright.PENANAYEi1pKIF0X829Please respect copyright.PENANAJKidUyM6pU
829Please respect copyright.PENANAgDEJQlpiOh
流感病毒接近每年均會出現變種,基於現時並無統一疫苗對抗各品種,所以很多時候在翌年便要轉換對應的疫苗。829Please respect copyright.PENANAcR1gX5Psha
829Please respect copyright.PENANArCMRzMMmHB
(圖2)流感病毒外部、名為HA的部份,將主宰病毒能否進入人體細胞裡頭。829Please respect copyright.PENANAksZDvz9Xvn829Please respect copyright.PENANAb48irVZ365
829Please respect copyright.PENANAKkDUkNv1SG
流感病毒的變異較常出現在頭部位置(Head),而現時疫苗的設計亦主要針對HA的頭部位置。829Please respect copyright.PENANAXXu057D6q2
829Please respect copyright.PENANAlG1KWokyuX
其目標是希望人們注射疫苗後,體內會產生對應HA頭部位置的抗體,阻止病毒進入人體細胞繼而作惡。829Please respect copyright.PENANAnMkJ7ZYX9u
829Please respect copyright.PENANApjiOhS3xoz
(圖3)另一方面來想,流感病毒變種就如不同顏色的花朵一樣。829Please respect copyright.PENANAT9f1ODzggE829Please respect copyright.PENANAhpm5aqJwqG
829Please respect copyright.PENANA7Pn4oEAxop
雖然花朵各有不同,但莖部位置則大同小異。829Please respect copyright.PENANAfp6QWmYmXs
829Please respect copyright.PENANAm47OPezuCm
(圖4)基於Stalk位置(花朵莖部位置)的變異成數較細,現時科學家正研發針對Stalk位置的疫苗(Ref1),希望可以透過一款疫苗對抗多款流感變種。829Please respect copyright.PENANALLDTcTM8Rn829Please respect copyright.PENANABUn7HPL0wN
829Please respect copyright.PENANAjObPYdaErz
這類型的疫苗現時已進入Phase1狀態,人體試驗找來了51名人士,注射疫苗後體內亦得出相應的大量抗體。829Please respect copyright.PENANAMOByBOyUER
829Please respect copyright.PENANAm90N0YTrnQ
而日後所進行的人體試驗,將會能夠獲取資料測量疫苗能否達到預防流感之效。829Please respect copyright.PENANAxAQ2lyDFR5
829Please respect copyright.PENANAgTRWAoFLg6
若安全性、效率等等均達到合理水平的話,將來不但之可以不用經常轉換疫苗款式,亦能大大減低疫苗與當下流感款式不吻合的機會,皆大歡喜。829Please respect copyright.PENANAXzNtT4xZAG
829Please respect copyright.PENANAXyEUnIaHAe
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。829Please respect copyright.PENANARyuOyZu3cw
829Please respect copyright.PENANAccKe2QC1Hn
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/toc829Please respect copyright.PENANA0E2EKn7oMh
829Please respect copyright.PENANALj95Kn7pRR
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。829Please respect copyright.PENANAdNmRB4iq2U
829Please respect copyright.PENANA4pWJ0j0coc
Link:829Please respect copyright.PENANADgNvcREByL
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio829Please respect copyright.PENANAD1SNJYT6yP
829Please respect copyright.PENANAo0ke4jgtcD
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。829Please respect copyright.PENANAr9zF5Z6pMF
829Please respect copyright.PENANAKCNfzqOrfI
https://www.instagram.com/potatopigtongue/829Please respect copyright.PENANA3AfcXNp2yP
829Please respect copyright.PENANAgfp5Y40Qle
829Please respect copyright.PENANASpJ8mnBTrS
Ref1:https://www.nature.com/articles/s41591-020-1118-7829Please respect copyright.PENANARikSMu3Jxv
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科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #119
深入淺出–流感疫苗的重要發展
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