It didn't matter; the infection would get them in the end. It was inevitable.

没关系，传染病最终也会传给他们。这是不可避免的。

youdao

That is two years when a man ignorant of his infection would be less likely to take precautions to stop it spreading.

这两年里一个不知自己已被感染的人不太可能采取预防措施来阻止病毒传播。

youdao

In the past, health experts warned us that the day would come in which it would become very difficult to provide medical care for even common problems such as lung infection or severe sour throat.

过去，健康专家曾警告我们，即使是肺部感染或严重的咽喉痛等常见疾病，有一天也会很难得到医疗护理。

youdao

If they had, they would have been tested to see if they needed treatment to prevent an infection like H.I.V.or hepatitis.

VOA: special.2010.02.10

And so you would be susceptible to infection by this organism.

所以你很可能会感染天花

耶鲁公开课 - 生物医学工程探索课程节选

But in some cases, that progressions of the disease would start to affect other organs, in addition to your skin, and your body would become overwhelmed with the infection and eventually die.

但在某些情况下,疾病的蔓延,会开始影响其它器官,不仅是皮肤,你的身体在受到感染后全线崩溃,直至死亡

耶鲁公开课 - 生物医学工程探索课程节选

Moreover, and more unexpectedly, such people took two years longer to progress from the point where they were infected with the virus to the one where they began to show the first symptoms of AIDS. That is two years when a man ignorant of his infection would be less likely to take precautions to stop it spreading.

ECONOMIST: AIDS

In these pre-vaccination days, smallpox pustules would be lanced, and their contents inserted into the skin of healthy people, producing a (hopefully) minor, localized infection which would then protect people from severe smallpox infection.

FORBES: A Pox On Your House? How Fighting One Disease Brought Back Another

Infection across Africa would increase the probability that the virus will mutate to become transmissible between humans.

ECONOMIST: The aves, and ave nots