which some believe was caused by an avian virus that first crossed the species barrier to swine before jumping to humans．A1together,over 30 new infectious diseases have emerged over the past 25 years．

有些专家认为那次流感流行是由一种鸟类的病毒引起的,这种病毒首次通过物种屏障传给猪进而感染人。在过去的25年里,一共出现了超过30种新的传染病。

属类：行业术语-检验检疫-

When working in polluted water, great care should be taken because the water may contain infectious bacteria or parasites.

在污染河溪工作时要特别小心,以防被有害细菌或寄生虫感染。

属类：应用文体-科研守则-

In the early days, pathologists called any agent of infectious disease "virus"

在早期,植物病理学家把任何侵染性病害的因子,都叫做‘virus’。

属类：综合句库--

This tradition, in turn, has led over the years to the immediate transfer to CDC of new infectious agents isolated in other laboratories

这个传统又导致多年来向美国疾病预防与控制中心转交其他实验室分离到的新传染性因子

属类：行业术语-检验检疫-

It helps control the spread of infectious diseases. Twenty-four Hour Sentinel Flush keeps fixture fresh during periods of nonuse.

这就有助于防止传染疾病的传播。如果24小时内无人使用,则这种冲水阀能够自动冲刷一次,以保持卫生洁具的干净清洁。

属类：产品说明书-热水器说明-

The man was declared infectious and his clothes and bed had to be fumigated

这人有传染病,他的衣服和床必须用烟熏来消毒。

属类：综合句库--

This is particularly true of Newcastle disease, infectious bronchitis, and(for breeder flocks)encephalomyelitis

这在鸡新城病、传染性支气管炎和(对种鸡群来说)禽脑脊髓炎尤其如此。

属类：综合句库--

Since the implementation of China's immunization program, great achievements have been made and the incidence of infectious diseases has sharply declined

中国实施计划免疫工作以来取得了巨大成就,传染病大幅度下降。

属类：综合句库--

Chronic degenerative diseases, such as heart disease and cancer, have replaced acute infectious illness as the leading causes of death in the United States," says Thomas L. Campbell, a physician specializing in family related medicine

专门研究家庭医学问题的一位内科医生托马斯·L·坎布尔说:“慢性变化疾病,如心脏病和癌症,在美国已取代急性传染病成为死亡的主要原因

属类：综合句库--

A severe, often gangrenous inflammation of the mouth or genitals, occurring usually after an infectious disease and found most often in children in poor hygienic or malnourished condition.

走马疳,坏疽性口炎嘴或生殖器部分严重的经常为生疽性的发炎,通常在感染了传染病后发生,最常发病于卫生条件极差或营养状况不良的孩子

属类：综合句库--