其目的在于集中并消灭病原体，限制组织损伤，以便于完全或近可能完全地修复组织。

Its purpose is to localize and eliminate the causative agent, to limit tissue injury and then to restore the tissue to normality or as close to normality as possible.

youdao

只要遇到一个“非本体”分子，就有可能是病原体的一部分，免疫系统就会将它消灭。

Whenever it meets one that is "not self" and thus likely to be part of a pathogen, it destroys it.

youdao

研究者们认为它们是一种病原体真菌的受害者。这种真菌在澳洲快速传播，完全摧毁了该地区整个两栖动物的数量，在有的地区甚至消灭了整个物种。

Researchers think it's the victim of a pathogenic fungus which has spread across the continent, wiping out entire amphibian populations in the area, and in some cases, whole species.

youdao

So, the antigen we're thinking about is a vaccine particularly designed to elicit immune response against a pathogen.

我们现在考虑的这种抗原,是一种特别设计的疫苗,它能够诱发免疫效应以消灭病原体

耶鲁公开课 - 生物医学工程探索课程节选