Its transmission wasn 't enough of a problem to cause large-scale epidemics .

但它的传播还不足以成为引发大规模流行病的“导火线”。

One of the most significant changes to all indian tribes was the introduction of viral diseases and epidemics .

一个最重要的变化就是所有的印第安人部落都感染了病毒和流行病。

Doctors without borders has quite a mission to provide humanitarian medical care to victims of armed conflict , epidemics and natural disasters .

医人无疆运动有一个明确的任务为武装冲突，流行病和自然灾害的受害者提供人道主义医疗。

Others wanted it more connected with asia , and to take a stronger role in combating hiv and other epidemics in the pacific .

还有些想要它与亚洲有更多的联系，并且在太平洋地区的艾滋病及其他流行病防治方面起到一个更重要的作用。

The most worrying of climate change 's impacts food and water shortages , forced migration , health epidemics are exacerbated by population growth .

最令人担忧的是气候变化带来的影响食品和用水短缺、被迫迁移、流行病蔓延都会因人口增长而加剧。