The whole category of diarrheal diseases, caused by viruses called enteroviruses, where they, it infects your gut.

所有种类的腹泻,都是由肠道病毒引起的,它们感染了肠道

耶鲁公开课 - 生物医学工程探索课程节选

If you get a flu that affects your intestinal system then those viruses are infecting gut cells.

而影响肠道系统的流感病毒,就可以感染肠道细胞

耶鲁公开课 - 生物医学工程探索课程节选