袋獾面部腫瘤病

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袋獾面部肿瘤病使袋獾的面上和口内长出肿瘤,影响进食。袋獾最后会因饥饿而死

袋獾面部腫瘤病Devil facial tumour disease, DFTD)是感染袋獾的一种非病毒性传染性寄生肿瘤英语parasitic cancer[1]。该疾病的第一个“官方案例”于1996年出现在澳大利亚。在接下来的10年中,这一疾病使塔斯馬尼亞州的野生袋獾数量大大减少,估计袋獾群体数量减少20%至50%,遍布占全州65%的范围[2][3]。被感染的群体在12-18个月内的死亡率达100%[4]。这一疾病主要集中在塔斯馬尼亞州的东半部。

袋獾面部腫瘤病从口部开始出现表观病变及肿块。这些变化从面部传播到全身并发展成为肿瘤。这些肿瘤影响采食并导致受感染的动物饥饿死亡。

传染性肿瘤极其罕见。其它已知的类型为犬传染性性病瘤英语canine transmissible venereal tumor。犬传染性性病瘤通过狗的性行为传播[5][6][7]

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参考文献[编辑]

  1. ^ Findings on Origin of a Cancer in Tasmanian Devils. New York Times. December 31, 2009 [2009-12-31]. "The Tasmanian devil, the spaniel-size marsupial found on the Australian island of Tasmania, has been hurtling toward extinction in recent years, the victim of a bizarre and mysterious facial cancer that spreads like a plague." 
  2. ^ DPIWE. 2005. Devil Facial Tumour Disease – Update June 2005
  3. ^ DPIWE. 2005. Tasmanian Devil Facial Tumor Disease, Disease Management Strategy
  4. ^ DPIWE. Disease Affecting Tasmanian Devils
  5. ^ Loh, Richmond. 2003. Tasmanian Devil (Sarcophilus harrisii) facial tumour (DFT). Paper prepared for the Devil Facial Tumour Disease Workshop, Sir Raymond Ferrall Centre, University of Tasmania, Newnham, 14 October 2003, p. 2.
  6. ^ Experts tackle the devil's tumour, BBC News, 20 February 2007.
  7. ^ Study Finds That a Type of Cancer in Dogs Is Contagious. The Washington Post. 11 August 2006 [11 August 2006]. 

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