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。595Please respect copyright.ＰＥＮＡＮＡaq5yGmL7T3
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。595Please respect copyright.ＰＥＮＡＮＡ3N1DRWMVxv
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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)；595Please respect copyright.ＰＥＮＡＮＡob416Bi7ik
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。595Please respect copyright.ＰＥＮＡＮＡzBkA1HXqKE
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鼠疫在人類史上可分為三大時期，分別為：595Please respect copyright.ＰＥＮＡＮＡ1dOY2IKlFu
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1. 第6-8世紀時期的查士丁尼瘟疫595Please respect copyright.ＰＥＮＡＮＡBUUWQXIawY
(Justinian’s Plague)595Please respect copyright.ＰＥＮＡＮＡP1sGP6VIrq
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2.第14-18世紀別名為黑死病的瘟疫595Please respect copyright.ＰＥＮＡＮＡhmFMXK8j3R
(Black Death)595Please respect copyright.ＰＥＮＡＮＡNkUDOBcz5d
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3.現代595Please respect copyright.ＰＥＮＡＮＡnwTmjK2CVh
(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)595Please respect copyright.ＰＥＮＡＮＡm7NsdNNJGj
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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；595Please respect copyright.ＰＥＮＡＮＡoEDArp8DIA
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。595Please respect copyright.ＰＥＮＡＮＡ4JgvTEmZr6
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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。595Please respect copyright.ＰＥＮＡＮＡ30BXwAoQkg
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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。595Please respect copyright.ＰＥＮＡＮＡA0Pw6KC4M7
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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。595Please respect copyright.ＰＥＮＡＮＡYh9Ay1UofM
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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。595Please respect copyright.ＰＥＮＡＮＡWX0eKhqd9A
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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。595Please respect copyright.ＰＥＮＡＮＡb6Qkx8nVEJ
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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。595Please respect copyright.ＰＥＮＡＮＡAgK9qMXFe0
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。595Please respect copyright.ＰＥＮＡＮＡwzNFmVa7WG
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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。595Please respect copyright.ＰＥＮＡＮＡWYgog7HHFs
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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。595Please respect copyright.ＰＥＮＡＮＡS4UxdkMBPK
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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。595Please respect copyright.ＰＥＮＡＮＡ7p0Yh94klu
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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/toc595Please respect copyright.ＰＥＮＡＮＡIlGGmiqo20
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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。595Please respect copyright.ＰＥＮＡＮＡSU71DoM0Id
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Link:595Please respect copyright.ＰＥＮＡＮＡVDIn8y4HC9
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio595Please respect copyright.ＰＥＮＡＮＡvEy6tGfrsU
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有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。595Please respect copyright.ＰＥＮＡＮＡJ9RQzKD2EC
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Ref1:https://www.nature.com/articles/s41435-019-0065-0595Please respect copyright.ＰＥＮＡＮＡkl8sJ5xuOv
Ref2:https://www.merckvetmanual.com/cat-owners/disorders-affecting-multiple-body-systems-of-cats/plague-in-cats595Please respect copyright.ＰＥＮＡＮＡyjNOLKCgZr
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