传染病

It is the most vicious epidemics of South Africa.

这是南非最为凶猛的传染病。

Migration posts difficulties for the control of epidemics, so it is significant that how to solve it.

人口迁移为传染病的防治增加了困难，如何解决这一问题在现实中尤为重要。

During their first winter, over half of the settlers ①died of starvation or epidemics.

在那里的第一个冬天，半数以上的移民都死于饥饿和传染病。

Many scientists who study epidemics have long argued that the agency has been overestimating the extent of H.I.V.

许多研究传染病的科学家一直批判组织过高的估计了全球范围内HIV的传播。

So far in this century, three epidemics of it have been let loose in the world.

半个世纪已经爆发了三次由独裁滋生的传染病。

Let's fully establish a veterinary system for the prevention of epidemics!

让我们完美的建立起一个兽医制度以预防传染病！

It's important to took at file spread of diseases throughout history to discover the causes and effects of epidemics.

我们有必要回顾—下历史上疾病的传播，从而弄清楚传染病的起因和后果。

They are some experts on the study of the epidemiology of the common cold.

他们是研究着普通感冒的传染病学方面的专家。

Twigg has proposed, on the basis of English evidence from the medieval period, that bubonic plague was impossible because of the lack of an epizootic among black rats (they must die before their fleas can escape to human hosts), the need for a suitable temperature to permit fleas to survive in numbers large enough to create demographic havoc, and the far too rapid spread of the pestilence.

一旦使得跳蚤大量存活，以至于造成大规模灾难发生的温度得到满足，传染病蔓延就会越迅猛的多。他还排除了肺鼠疫，因为它过于自我限制以至于不能成为一个合理的选择。

Gosling new type viral enteritis is a new disease, whose epizootiology, the clinical symptoms and lesions are quite similar with those of gosling plague, and causes a serious economy lose for geese industry. Therefore, it is important and necessary to study the etiology, to develope a rapidly diagnosis technique, and to search the prevention and control measure of the disease.

雏鹅新型病毒性肠炎(gosling new type viral enteritis，GNTVE)是新近出现的一种在流行病学、临床症状和病理变化方面与小鹅瘟(gosling plague，GP)极其相似的传染病，它的出现给养鹅业造成了严重的经济损失。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。