季節性流感造成全球每年約290,000-650,000人的死亡。857Please respect copyright.PENANAlJL9RnZ901857Please respect copyright.PENANAlkDRM1ileC
857Please respect copyright.PENANAMHTBzCS1Lk
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。857Please respect copyright.PENANAiOt7Dv1NdD
857Please respect copyright.PENANApFjl7Ummmi
(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。857Please respect copyright.PENANAX8ReXTJUSX857Please respect copyright.PENANAeVzhUMLOqJ
857Please respect copyright.PENANAKnHp3cUaVI
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。857Please respect copyright.PENANAFNdidB7twK
857Please respect copyright.PENANAqghISSXZay
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。857Please respect copyright.PENANA9OHMfrdFc9
857Please respect copyright.PENANAIibGzHB9tU
(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。857Please respect copyright.PENANABEgRBQ4m5q857Please respect copyright.PENANApjYF38N1F7
857Please respect copyright.PENANANF8lCbWw1n
雖然花朵各有不同,但莖部位置則大同小異。857Please respect copyright.PENANAzWGPbqMEHe
857Please respect copyright.PENANA32w3QPqOLP
(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。857Please respect copyright.PENANAPecrsQZNRb857Please respect copyright.PENANALz6clAP7Xw
857Please respect copyright.PENANAJHzzQFDrbI
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。857Please respect copyright.PENANA64x08Rn5JV
857Please respect copyright.PENANAOwcc1pRYb7
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。857Please respect copyright.PENANAbYhyfZog6A
857Please respect copyright.PENANAlqzJu17quS
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。857Please respect copyright.PENANAqv96PLU6bv
857Please respect copyright.PENANAfjMSD0MP0C
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。857Please respect copyright.PENANAvUIbH7UJOD
857Please respect copyright.PENANAlv3XxaCWgi
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/toc857Please respect copyright.PENANA11KERzVQWc
857Please respect copyright.PENANAbM9k9WlfJC
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。857Please respect copyright.PENANAlP4IMtTNGo
857Please respect copyright.PENANAHILafv1HlL
Link:857Please respect copyright.PENANAq0TbzHgUeR
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio857Please respect copyright.PENANAEgiB0VSAz9
857Please respect copyright.PENANAvdEWtWDXLP
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。857Please respect copyright.PENANAj6aLxc1yse
857Please respect copyright.PENANARINgzRa4vO
https://www.instagram.com/potatopigtongue/857Please respect copyright.PENANADmYm0WKwI3
857Please respect copyright.PENANA6pKKDtkrgZ
857Please respect copyright.PENANAUF1JUvJvpU
Ref1:https://www.nature.com/articles/s41591-020-1118-7857Please respect copyright.PENANARCD0SOiY8O
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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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