It first infects you because you breathe in some of the infectious agents.

只要吸入病原体，你就会被感染。

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Limit contact with infectious agents.

限制接触感染源?。

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They analyzed 35 genes that help distinguish infections and identified infectious agents with better-than-average success rates.

他们分析了有助于区别感染的35个基因，对感染原的确定成功率高于一般水平。

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and also intensify vaccination against all infectious agents, all viruses that are known to be strongly associated with the development of cancer. The government should increase its efforts to prevent illnesses with links to cancer, he says,such as hepatitis, a disease of the liver, and the human papillomavirus, which is transmitted during intercourse and is linked to cervical cancer.

VOA: standard.2010.06.16

So, the concern at this time, and still remains a concern, is that infectious agents, particularly very deadly infectious agents like smallpox, could be weaponized in some way, or converted into a weapon.

当时有一些担心,现在还在担心,这些传染源,尤其是像天花非常具有致命性的传染源,可以进行某种程度的武器化,或者转变成武器

耶鲁公开课 - 生物医学工程探索课程节选

TLRs tend to prompt the immune system to respond to infectious agents like bacteria and viruses - not allergens.

BBC: Immune system 'fights allergies'

Giving a computer the ability to fight off infectious agents sounds odd, but it makes a lot of sense.

ECONOMIST: A thousand ills require a thousand cures

In particular, the most inbred individuals will cost the most to treat and rehabilitate and such individuals could also act as reservoirs of infectious agents when they are subsequently released.

ECONOMIST: Inbreeding: Consanguinity costs | The