Now, normally that's a good thing because if you're out in the world and you get infected with adenoviruses you recover from it, your immune system can get rid of it.

通常情况下这是好事,这可以让暴露在户外的你,免于腺病毒的侵害,你的免疫系统可以清除病毒

耶鲁公开课 - 生物医学工程探索课程节选

your innate immune system tries to get rid of them.

你的先天性免疫系统试着去清除细菌

耶鲁公开课 - 生物医学工程探索课程节选