季節性流感造成全球每年約290,000-650,000人的死亡。765Please respect copyright.PENANAYn0mam2gk1765Please respect copyright.PENANAjV38Mt790u
765Please respect copyright.PENANAi6mzQ5CGbC
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。765Please respect copyright.PENANAkjZgyXsYRa
765Please respect copyright.PENANAetWaGE0CGQ
(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。765Please respect copyright.PENANAkcFn1xbSfN765Please respect copyright.PENANAQCQ8PexFTq
765Please respect copyright.PENANAQsYkxWZcIL
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。765Please respect copyright.PENANAB3fNvfp8pl
765Please respect copyright.PENANA2iwY2l8YVq
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。765Please respect copyright.PENANABUiDGzQbwE
765Please respect copyright.PENANANwl1t45Imu
(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。765Please respect copyright.PENANAuvgqHWcRuK765Please respect copyright.PENANABjC2XmBmfD
765Please respect copyright.PENANAYxedO6bKsZ
雖然花朵各有不同,但莖部位置則大同小異。765Please respect copyright.PENANAiLWUV7Cyzs
765Please respect copyright.PENANADWEG2c9nJm
(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。765Please respect copyright.PENANArWYwzHIWJP765Please respect copyright.PENANAV6nMrie5Fp
765Please respect copyright.PENANAIXfvNRlqS9
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。765Please respect copyright.PENANAAElazsewfu
765Please respect copyright.PENANAovWoivYhfH
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。765Please respect copyright.PENANAw8z2NcxbzC
765Please respect copyright.PENANARCvbVq8GMA
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。765Please respect copyright.PENANAXylUX8aBDJ
765Please respect copyright.PENANArLOKvJhmJe
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。765Please respect copyright.PENANALgj1Ypyodv
765Please respect copyright.PENANAApwIJ7KIME
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/toc765Please respect copyright.PENANAg4uICjQdRp
765Please respect copyright.PENANA8sNhqSMHx6
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。765Please respect copyright.PENANAoEJrgcCe1N
765Please respect copyright.PENANA6rCKrp6ZMy
Link:765Please respect copyright.PENANARugT1oUWXe
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio765Please respect copyright.PENANA6ywgcMOT3w
765Please respect copyright.PENANADCxdE33zUj
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。765Please respect copyright.PENANAj1JTwVS0B9
765Please respect copyright.PENANAqnLpZrUcBh
https://www.instagram.com/potatopigtongue/765Please respect copyright.PENANAaBiy1IRhQX
765Please respect copyright.PENANAaL6T1evAeo
765Please respect copyright.PENANAsR4gcNMfYw
Ref1:https://www.nature.com/articles/s41591-020-1118-7765Please respect copyright.PENANA4HGDrrB5Xo