That's one of the beauties of proteins as working molecules is that their structure can be changed by subtle means.

蛋白质作为一种生物活性分子,其优势之一是,能够通过精细的方法改变其结构

耶鲁公开课 - 生物医学工程探索课程节选

Some words that are useful in this discussion, a 'host'. A host is the organism that you're interested in defending and it could be you or me or some typical person.

讨论中会用到一些词,宿主 宿主是,你对其免疫反应感兴趣的生物体,可以是你我,或者其他人

耶鲁公开课 - 生物医学工程探索课程节选