The main source of infection is pig.
传染源和宿主动物主要是猪。
The source of infection was undetermined.
感染源尚未确定。
The uncle’s source of infection is under investigation.
正在对舅舅的感染源进行调查。
A dirty water supply can be a source of infection.
不卫生的供水可能成为感染疾病的根源。
Investigations into the source of infection are underway.
正在进行感染源调查。
Patients of measles are the only source of infection.
麻疹病人是唯一的传染源。
The source of infection for all three cases is still under investigation.
目前仍在对三例病例的感染源进行调查。
As in Asia, contact with infected birds is the principal source of infection.
如同在亚洲一样，接触受感染的禽鸟是主要感染源。
Health care staff working while sick are an obvious source of infection.
医院的工作人员在生病时工作是明显的传染源。
The source of infection is still unknown, but is under active investigation.
病毒来源仍不明，正在积极调查中。
The likely source of infection for the additional cases has not yet been determined.
尚未确定其它病例的可能感染源。
The primary source of infection was the oospore overwintered in soil and plant survival.
其主要侵染来源是土壤中和植物病残体上越冬的卵孢子。
Investigations into the source of his infection indicate possible exposure at poultry market.
对其感染源进行的调查表明他可能去过家禽市场。
Investigations into the source of his infection are ongoing.
目前正在对他的感染源进行调查。
The source of her infection is presently under investigation.
目前正在调查她感染的来源。
Investigations into the source of his infection indicate similar environmental exposure as his mother.
对其感染源的调查表明与其母亲相似的环境接触。
Investigations as to the source of the girl's infection are continuing.
对该女孩感染源的调查正在继续。
The source of their infection is presently under investigation.
目前正在调查其感染源。
Investigations into the source of her infection indicate exposure to sick and dead poultry.
对其感染源的调查表明曾接触过病禽和死禽。
Further investigations are under way to identify the source of her infection.
正在开展进一步调查以确定其感染源。
Investigations into the source of her infection are ongoing.
正在对感染源进行调查。
Be careful around animals - as they can be a source of parasitic infection.
小心周围的动物-因为它们可以是一个来源，寄生虫感染。
The exact source of the infection for the 3 individuals is still unclear.
3例患者的具体感染来源尚不清楚。
They hope to track down the source of the infection.
他们希望查出这种传染病的根源。
Conclusion Breast milk is the major source of CMV infection acquired by infant.
结论母乳是婴儿获得CMV感染的主要来源。
The source of this infection was a white sma…
传染源是一只小白猫。
The source of this infection was a white sma…
传染源是一只小白猫。
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