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1·Anisakis simplex larvae is the most important causative agent of anisakiasis.

异尖线虫病的主要致病源是简单异尖线虫幼虫。

2·Identifying the specific causative agent is not always possible.

要鉴定特异的病因并不总是可能的。

3·Mycobacterium tuberculosis is the causative agent of tuberculosis.

结核分枝杆菌是造成结核病的致病菌。

4·Plasmodium is a protozoan which causes malaria; it is the causative agent of the disease.

疟原虫是引起疟疾的原生动物；是疾病的病原体。

5·An enterovirus separable into three serotypes that is the causative agent of poliomyelitis.

脊髓灰质炎病毒一种肠道病毒，可分为三种血清型，它是导致脊髓灰质炎的媒介。

6·The condition or causative agent, such as a bacterium, fungus, or virus, that results in blight.

如细菌、真菌或病毒等导致枯萎病的条件或起因。

7·Following medical reports of a novel immunodeficiency syndrome in 1981, the search for a causative agent was on.

下列医疗报告一种新型免疫缺陷综合症于1981年，寻找病原体是。

8·In unsuccessful transmission experiments the causative agent could not be passed through bacteria-retaining filters.

在失败的传染实验中，致病因子不能通过细菌滤器。

9·It is primarily causative agent of abortion, stillbirth and the motor nervous system disease of nascent calf in cattle.

该病对牛的危害尤为严重，主要造成孕畜流产、死胎以及新生犊牛的运动神经系统疾病。

10·Both Russia and Kazakhstan reported outbreaks of avian influenza in poultry in late July, and confirmed H5N1 as the causative agent in early August.

俄罗斯和哈萨克斯坦均于7月下旬报告了家禽中禽流感暴发并于8月初确认H5N1为病原体。