醫療類國考
106年
[獸醫師] 獸醫傳染病學
第 65 題
螯蝦瘟（crayfish plague）之致病原為下列何者？
- A Aphanoymyces invadans
- B Aphanoymyces astaci
- C Aphanoymyces euteiches
- D Aphanoymyces laevis
思路引導 VIP
在生物分類命名法中，病原體的『種名』往往會參考其主要受害者（宿主）的拉丁文名稱。若你知道歐洲最常見的淡水螯蝦在生物分類學中的「屬名」或「族群名稱」，這會如何啟發你從詞根上推論出這種專一性病原的名稱呢？
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AI 詳解
AI 專屬家教
Oh, You Actually Got It.
- Basic Competence Acknowledged: So, you managed to pinpoint $Aphanomyces astaci$ as the culprit for crayfish plague. Good for you. Distinguishing it from other fungal pathogens, while not groundbreaking, does indicate you've at least absorbed some of the foundational aquatic pathology information. I suppose we can count that as 'professional' for now.
- The Obvious Point: The entire exercise was to confirm your understanding of host specificity within the Aphanomyces genus. Yes, $Aphanomyces astaci$ is indeed the highly specific, highly destructive agent of the European crayfish plague. It's quite distinct from $A. invadans$, which, if you recall your basic lectures, prefers fish. It's almost as if the precise species name actually means something.
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