此命題由汪汪真鳩喂（#5523）巴打提供，在此作出致謝。
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貓捉老鼠，天公地義，警黑合作，違背道義。625Please respect copyright.ＰＥＮＡＮＡRq1A1nOj7O
在回答貓隻究竟會否因為捉老鼠而患上鼠疫（Plague)之前，我們先行快速了解一下鼠疫的背景資料。625Please respect copyright.ＰＥＮＡＮＡhxGCv3ZTfv
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鼠疫至少釀成全球二億人的死亡，由細菌Yersinia pestis 引致，為1894年細菌學家Alexandre Yersin在香港鼠疫爆發時搵出，因此取其名字Yersinia命名（Ref1)；625Please respect copyright.ＰＥＮＡＮＡhRKDeLBI0Z
同期亦有一名日本科學家同在香港相近時間分離出致病的細菌，但因報告內容有些許具爭議性的地方，功勞普遍被嘉許在前者身上。625Please respect copyright.ＰＥＮＡＮＡkCW4pxetBg
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鼠疫在人類史上可分為三大時期，分別為：625Please respect copyright.ＰＥＮＡＮＡWK88vyNQpH
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1. 第6-8世紀時期的查士丁尼瘟疫625Please respect copyright.ＰＥＮＡＮＡmqHeEY4ebe
(Justinian’s Plague)625Please respect copyright.ＰＥＮＡＮＡr4NfrPEN5b
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2.第14-18世紀別名為黑死病的瘟疫625Please respect copyright.ＰＥＮＡＮＡMCCtl26B4d
(Black Death)625Please respect copyright.ＰＥＮＡＮＡzN5RBH7JU1
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3.現代625Please respect copyright.ＰＥＮＡＮＡECxdYl3gCa
(近期較為大型的一次為發生在2017年馬達加斯加，釀成202人死)625Please respect copyright.ＰＥＮＡＮＡvhykIuVNLX
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雖然鼠疫歷史長久，但疫苗研究側重在其他疾病上的關係，現時其實並沒有具高效力的疫苗在市面，不少疫苗還停留在臨床研究階段當中；625Please respect copyright.ＰＥＮＡＮＡWxAY8hXGsi
美軍在越戰所用的疫苗，效果被證實非常參差，而且大部份接種者均展示出強烈的不良反應。625Please respect copyright.ＰＥＮＡＮＡdvvzc8NIUc
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（圖2）雖然我們用上鼠疫在形容此疾病，但Yersinia pestis細菌其實是寄宿在蝨的身體裡頭，藉著蝨的幫助下傳播開去。625Please respect copyright.ＰＥＮＡＮＡEoE3EcL6bd
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受感染的蝨會寄居在囓齒動物身上，促使被咬的囓齒動物將會感染鼠疫。625Please respect copyright.ＰＥＮＡＮＡSz4MrlRBcA
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現今的Yersinia pestis細菌品種，相信是透過蝨與囓齒動物不斷的互相傳遞而演發出來。625Please respect copyright.ＰＥＮＡＮＡm1OtMsjIaZ
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之於人類患上鼠疫的途徑，則主要是接觸受鼠疫感染的動物、遭受感染的蝨咬傷或吸入受感染的動物體液所致。625Please respect copyright.ＰＥＮＡＮＡgb1s5kukqw
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（圖3）鼠疫可以大致分為三大類，Bubonic plague、Septicemic plague及Pneumonic plague，其分別及特徵一律在圖中列出。625Please respect copyright.ＰＥＮＡＮＡ1ijcZymyXj
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（圖4）而非常遺憾的是，貓隻是可以因捕捉受感染的鼠隻而患上鼠疫的。625Please respect copyright.ＰＥＮＡＮＡGgnv0hxxmw
貓隻大多數的感染個案為Bubonic plague（Ref2)，主人有機會因為被寄宿在貓隻身上受感染的蝨所咬而患上Bubonic plague，但亦有個別個案因為主人與貓隻親吻，因而接觸貓隻口水而患上Pneumonic plague。625Please respect copyright.ＰＥＮＡＮＡ40fCXVstxr
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當然，圖中所列舉的徵狀只是概論，一切由專業獸醫診斷為最準，而治療的手法跟治療人的方式一樣，一般開上抗生素作治療，而有必要時亦可能會隔離貓隻3日或以上。625Please respect copyright.ＰＥＮＡＮＡgo2fYnX7SK
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各位巴絲想到有趣話題的話，不妨在留言提出，話題有趣且我有能力講解的話，將會被製作成為深入淺出的題材。625Please respect copyright.ＰＥＮＡＮＡZbyKTQ120o
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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。625Please respect copyright.ＰＥＮＡＮＡdjM9SnE19J
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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/toc625Please respect copyright.ＰＥＮＡＮＡcAZB7hwbRE
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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。625Please respect copyright.ＰＥＮＡＮＡP6xza8PLK6
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Link:625Please respect copyright.ＰＥＮＡＮＡl2cWljxQr0
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio625Please respect copyright.ＰＥＮＡＮＡrdt4zNGaFG
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有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。625Please respect copyright.ＰＥＮＡＮＡO6p722DaOn
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Ref1:https://www.nature.com/articles/s41435-019-0065-0625Please respect copyright.ＰＥＮＡＮＡWdgYMJHMRd
Ref2:https://www.merckvetmanual.com/cat-owners/disorders-affecting-multiple-body-systems-of-cats/plague-in-cats625Please respect copyright.ＰＥＮＡＮＡkeZUnaI8S0
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