Even so, the surviving records of North America do contain references to deadly epidemics among the indigenous population.

尽管如此，现存的北美记录确实提到了土著居民中发生的致命流行病。

In stands dominated by trees such as aspen, however, incipient gypsy moth outbreaks are quickly suppressed by viral epidemics.

然而，在以白杨等树为主的林分，最初的舞毒蛾爆发很快就被病毒流行病所抑制。

The government proposes to reduce the population by using a virus that has caused devastating epidemics in rabbit populations elsewhere.

政府计划通过使用一种病毒来减少兔子的数量，这种病毒已经在其他地方的兔子种群中造成了毁灭性的流行病。

Virgin-soil epidemics are those in which the populations at risk have had no previous contact with the diseases that strike them and are therefore immunologically almost defenseless.

处女地流行病指的是那些风险人群以前没有接触过袭击他们的疾病，因此在免疫上几乎毫无防御能力的疾病。

I haven't heard of any raging epidemics among the hundreds of thousands of people buying cross border.

我还没听说过有任何传染病在数十万跨国买药的人中传播蔓延。

Unsafe water will lead to epidemics.

不安全水将导致流行病。

There are more epidemics for people and animals.

更多的传染性疾病侵袭人与动物。

This viral presence can increase into regular epidemics.

该病毒的存在可增加，形成经常性流行。

But new issues kept intruding, like hurricanes and epidemics.

但是新的问题层出不穷，比如龙卷风和流行疾病。

Guidance tailored to different types of epidemics and health facilities.

适合不同类型流行和卫生设施的指南。

There are two AIDS epidemics in the world: one in humans, the other in cats.

世界上有两种艾滋病，一种会感染人类，另一种则感染猫。

At present there has yet not any report on the outbreak of large-scale epidemics.

目前没有爆发大规模传染病的报道。

During seasonal epidemics, more than 90% of deaths occur in the frail elderly.

季节性流感期间，90%以上的死亡病例发生在体弱老人中。

Influenza epidemics occur yearly during autumn and winter in temperate regions.

在温带地区的秋季和冬季期间，每年发生流感流行。

The results could be useful when discussing ways of dealing with epidemics and pandemics.

这一结果对于我们讨论如何解决流行病和广泛性流行病是非常有用的。

In some areas death rates have actually risen as a result of extreme poverty and epidemics.

在某些地区，由于极端贫困和流行病，死亡率实际上已经上升。

Historically the disease has caused devastating epidemics in Africa, America and Europe.

在历史上，该病已在非洲、美洲和欧洲引起具有破坏性的流行。

WHO regularly provides technical support at the field level to countries facing epidemics.

世卫组织向面临疾病流行的国家定期提供实地技术支持。

Intermediate yellow fever: In humid or semi-humid parts of Africa, small-scale epidemics occur.

中间型黄热病：在非洲潮湿或半潮湿地区，时而发生小规模流行病。

Attempts to foresee epidemics such as these have traditionally relied on fieldwork on the ground.

试图预知这样的流行病，传统上依赖于地面上的野外作业。

HIV is fuelling TB epidemics in many countries and multi-drug resistance is a growing threat.

在许多国家，艾滋病毒加快了结核病流行，同时多药耐药性也日益成为一大威胁。

Polio epidemics in 15 of the 21 re-infected countries have already been successfully stopped.

在21个重新出现感染的国家中的15个，已成功地制止了脊髓灰质炎的流行。

The debate turns on whether diseases like cancer can be characterized as emergencies, or “epidemics.

争议的焦点集中在像癌症之类的疾病是否可以划归急症或者“流行病”之列。

Today marks the beginning of the end of deadly and disruptive epidemics in Africa's meningitis belt.

今天，非洲脑膜炎地带一种致命且具有破坏性的流行病将开始消亡。

Meningitis epidemics in the African meningitis belt constitute an enormous public health burden.

非洲脑膜炎带发生的脑膜炎流行带来了十分巨大的公共卫生负担。

While noting such epidemics with concern, the Committee based its assessment on the global situation.

在关切地注意到这种流行情况的同时，委员会根据全球形势作出了评估。

The case fatality has varied widely between epidemics but, has been less than 10% in documented cases.

每次流行时的病死率存有很大不同，但有过记录的病例表明，病死率低于10%。

When major epidemics occur, WHO assists countries with implementing evidence-based emergency interventions.

在发生严重流行病时，世卫组织协助各国实施基于证据的突发事件干预措施。