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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  that is, improvements that dealt with living conditions
  改善生活条件
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  across a broad spectrum of diseases.
  跨越那些流传广泛的疾病
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  We've seen that in the sanitary movement.
  我们已经看到在卫生运动中
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  In the tropics, instead,
  相反在热带地区
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  metropolitan powers applied a different vision
  大都市的权力适用于不同角度
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  of what was called vertical hygiene, or tropical hygiene.
  我们称为纵向保健法 或热带保健法
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  Now, vertical campaigns of public health
  现在是针对公众健康的纵向运动
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  targeted instead single diseases,
  而不是专指单一的疾病
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  and they were designed to protect, above all,
  他们旨在保护 首先
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  Europeans against the most menacing epidemics.
  欧洲要面对来势汹汹的疫情
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  That was tropical hygiene, then;
  这是热带保健学
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  something different from what was practiced
  是同一时间