来自《耶鲁大学开放课程：1600年后西方社会的流行病 第15集 第15集》

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  A first, as we said, was Britain's position
  正如我们所说
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  as a great colonial power.
  英国作为一个伟大的殖民国家的地位
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  There were others, as well,
  有其他人
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  that lay behind this new medical specialism.
  在背后奠定了这种新的医疗专长
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  One was something we've already dealt with,
  其中之一是我们早已研究过的
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  and that is the germ theory of disease
  疾病的菌源说
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  and the triumph of contagionism over anticontagionism.
  这是感染力学对反感染力学的胜利
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  The germ theory had a number of possible implications.
  菌源说引起了一系列的可能影响
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  One was the idea, as we've seen,
  其中一个观点是我们已经了解到的
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  of clinching the concept of disease specificity.
  包揽了疾病特异性的概念
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  And tropical medicine was built on the premise
  热带医学建立的前提是
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  that some diseases lurking in Africa and Asian
  一些疾病潜伏在非洲和亚洲