查询词典 causative agent

Are ongoing and a candidate causative infectious agent is under investigation.

究室的研究从未间断且针对传染的原因也已在调查中。

The causative agent of the disease is an Corona virus, infectious bronchitis virus IBV）, classified as Corona .Present vaccines for IB are all modified live viruses derived either by sequential passage embrocated chicken eggs. As Immunogenicity of IBV is usually correlated with its virulence, almost all modified live IB vaccines remained insufficient attenuation and have shown a variety of side effects including spread of vaccine virus to no vaccinates, occurrence of long term "carrier" birds, and increasing virulence during in vivo passage.

目前国内外预防本病所用的疫苗大多数是弱毒疫苗，但现用弱毒疫苗都存在以下缺点：（1）与IBV强毒一样，其弱毒疫苗株也能引起潜伏感染，潜伏感染的鸡将终生带毒；（2）疫苗病毒可以由接种鸡传染给非接种鸡，在鸡群之间传播过程中毒力会返强，从而成为新的感染源；（3）传染性支气管炎病毒极易发生变异，且易成为病毒重组的供体和受体，给使用IB传统疫苗预防和根除IB带来极大的困难。

Foot-and-mouth disease is a highly contagious disease of cloven-hoofed animals, whose causative agent,foot-and-mouth disease virus,is a member of the Aphthovirus genus within the Picornaviridae.

口蹄疫(Foot-and-mouth disease，FMD)是由口蹄疫病毒(Foot-and-mouth disease virus，FMDV)引起的多种偶蹄动物高度接触性传染病。

On April 7, WHO named a novel coronavirus as the major causative agent of SARS, but did not rule out the significance of other pathogens as cofactors in the disease.

在2003年3月1日和3月31日之间，又报告了361起新的SARS 病例和9起死亡病例，表示SARS仍然在那里继续流行。

and Vibrio anguillarum, a halophilic Gram-negative bacterium, is the causative agent of vibriosis in fish.

与鳗弧菌是一种嗜盐的革兰氏阴性细菌，也是鱼类弧菌病的主要病原。

Of these Enterovirus 71 (EV71) is a common causative agent, alongside other viruses like Coxsackie virus A.

常见的致病原包括肠病毒71型和甲型coxsackie病毒。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。