季節性流感造成全球每年約290,000-650,000人的死亡。821Please respect copyright.PENANAiXT4F15u6E821Please respect copyright.PENANA2PvSf2hknI
821Please respect copyright.PENANABbj23VUzLn
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。821Please respect copyright.PENANAbhwKyr79Gx
821Please respect copyright.PENANAYspMY6BMZP
(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。821Please respect copyright.PENANAOLC0kCv8qG821Please respect copyright.PENANA3NjVTSPQRA
821Please respect copyright.PENANAYWVxW53GXc
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。821Please respect copyright.PENANAi0FQfVupM6
821Please respect copyright.PENANAzJ1NijX090
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。821Please respect copyright.PENANAAJWjGwIYPK
821Please respect copyright.PENANATYbywnwjVD
(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。821Please respect copyright.PENANAg65K6xSnz9821Please respect copyright.PENANAEdwkRr29JC
821Please respect copyright.PENANAbmE1RIrULx
雖然花朵各有不同,但莖部位置則大同小異。821Please respect copyright.PENANAqEGIc53Pmp
821Please respect copyright.PENANAtu4ys2xyzZ
(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。821Please respect copyright.PENANAVLy9NJ7y3n821Please respect copyright.PENANA1exb4e3sGx
821Please respect copyright.PENANAGRIWKfE3WS
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。821Please respect copyright.PENANA1U341xbaEU
821Please respect copyright.PENANAZiABBL8rTb
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。821Please respect copyright.PENANAlQhO4PAcoO
821Please respect copyright.PENANAwcT4JKvYhK
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。821Please respect copyright.PENANAUcI5sF19Ed
821Please respect copyright.PENANApuizsartI9
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。821Please respect copyright.PENANAN2GdkYdJfQ
821Please respect copyright.PENANA4nQogBFQas
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/toc821Please respect copyright.PENANAN52Pj3lBGZ
821Please respect copyright.PENANAjMDh1Nj6JZ
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。821Please respect copyright.PENANA6sFjFTRM6W
821Please respect copyright.PENANADMzJ1rdITZ
Link:821Please respect copyright.PENANAuM9PUow5wM
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio821Please respect copyright.PENANAptx3W4nsUU
821Please respect copyright.PENANA1BLkT3MiFL
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。821Please respect copyright.PENANADH6nQfUE6V
821Please respect copyright.PENANAxtCHw6ONSB
https://www.instagram.com/potatopigtongue/821Please respect copyright.PENANAhUcjoRlh4f
821Please respect copyright.PENANAxYNOfQHzq4
821Please respect copyright.PENANAjQlCkwODRj
Ref1:https://www.nature.com/articles/s41591-020-1118-7821Please respect copyright.PENANAwSPqTY9EU6