So, what that really means, you know, from last week's lecture, is that the vaccine stimulates these particular cells in your immune system to give you immunity.

所以,这就意味着,通过上周的课程,你们知道,疫苗通过刺激免疫系统中的,特定细胞来使人获得免疫力

耶鲁公开课 - 生物医学工程探索课程节选