季節性流感造成全球每年約290,000-650,000人的死亡。790Please respect copyright.PENANALpR1PBUopz790Please respect copyright.PENANAK1YqXDnitq
790Please respect copyright.PENANAXueWa5mWar
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。790Please respect copyright.PENANAScCIgSybMm
790Please respect copyright.PENANA9Q0NS07MSo
(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。790Please respect copyright.PENANAHqqiRs7Qaz790Please respect copyright.PENANADxqGi7Z9Sl
790Please respect copyright.PENANAx50nOnuxkt
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。790Please respect copyright.PENANA4m8aoIF40L
790Please respect copyright.PENANA05A8TaxJEM
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。790Please respect copyright.PENANAsbOgTAgXw6
790Please respect copyright.PENANADE4dx4uvGw
(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。790Please respect copyright.PENANACO9VbBqA3U790Please respect copyright.PENANAGE7hKfUR2s
790Please respect copyright.PENANA5ksRRx5yIX
雖然花朵各有不同,但莖部位置則大同小異。790Please respect copyright.PENANAEE415flNAh
790Please respect copyright.PENANADoRlnH6sH8
(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。790Please respect copyright.PENANAzKfZ8oTaEt790Please respect copyright.PENANAs1aBdf8uOV
790Please respect copyright.PENANAcHDVGEJ5wn
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。790Please respect copyright.PENANAhDRSRnC90T
790Please respect copyright.PENANASJ0wAVjikj
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。790Please respect copyright.PENANAggUdx6kvIf
790Please respect copyright.PENANAdVViyiEnVa
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。790Please respect copyright.PENANAyFxXz23uQd
790Please respect copyright.PENANAPRBnuGPzT2
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。790Please respect copyright.PENANAenom3jUPAP
790Please respect copyright.PENANAiST8gfiYvY
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/toc790Please respect copyright.PENANANA5YZdc3YR
790Please respect copyright.PENANA31VFn6r1pg
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。790Please respect copyright.PENANAzJT7T8q2lj
790Please respect copyright.PENANATqvYIY3NT7
Link:790Please respect copyright.PENANAbtj3K0T8rp
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio790Please respect copyright.PENANAdueKDBfg60
790Please respect copyright.PENANAwF5r4aRwnz
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。790Please respect copyright.PENANAXUJP5laADZ
790Please respect copyright.PENANAxIxn8LoqIp
https://www.instagram.com/potatopigtongue/790Please respect copyright.PENANAIw2cX9ZMrz
790Please respect copyright.PENANASjZbNRpCCi
790Please respect copyright.PENANA1TTfexJgUO
Ref1:https://www.nature.com/articles/s41591-020-1118-7790Please respect copyright.PENANABj2x35JXpp