这种状态称为“传染免疫”。

This state has been named "premunition".

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有鉴于此，当小孩得了感冒，你可以采取多种措施来加强自己的免疫功能，把可能被小孩传染的几率降至最低。

So when your kid gets a cold, there are lots of things you can do to bolster your immune system and minimize the chances of catching it from her.

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鼻塞和打喷嚏的感冒症状并不是感冒病毒本身的表现，而是你自身的免疫系统过度积极的应对病毒传染，科恩说。

The sniffling-and-sneezing symptoms of a cold are not the act of the virus itself but the result of your immune system's overly energetic response to the infection, Cohen said.

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If I happen to have some other infectious disease, then not only would you passing the protection to smallpox, but you'd be passing that disease among the population as well.

如果正好还有其他传染病,那不仅会传播对天花的免疫能力,也在人群中传播其它传染病

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