Other kinds of microorganisms reproduce and cause tissue damage in a different way.

其他种类微生物的繁殖,也可以以其他形式引起组织的损害

耶鲁公开课 - 生物医学工程探索课程节选

Now, a virus is not capable of reproducing on its own, so if you got a virus into your body somehow and it didn't enter any of your cells, it would cause no damage because it could not reproduce.

病毒自身并不能繁殖,所以如果你的身体感染了病毒,而病毒没有进入细胞的话,因其不能繁殖所以不会对身体造成伤害

耶鲁公开课 - 生物医学工程探索课程节选