在吃饭前、上完厕所和接触动物后，你需要用肥皂和水来洗手，因为你的手可能会携带病毒。

You need to wash your hands with soap and water before you eat, after you use the toilet, and after you touch animals, because your hands may carry viruses.

youdao

这里可能有许多靠空气传播的病原体携带病毒。

There would have to be some sort of airborne pathogens that spread the virus.

youdao

最终，约翰成功了，小玛丽亚出生后没有携带病毒。

Eventually John succeeded, and little Maria was born HIV-free.

youdao

So, some of these cases were probably due to polio that was transmitted by incompletely killed virus that was present in the vaccine.

因此,那些病例的发病的原因,是被那些疫苗中携带的,没有被完全杀死的病毒感染

耶鲁公开课 - 生物医学工程探索课程节选

Well, what if you could hijack that virus to carry genes that you want?

那么,如果你能,挟持病毒使之携带你所要的基因该多好

耶鲁公开课 - 生物医学工程探索课程节选

There were no asymptomatic carriers.

也没有无症状的病毒携带者

耶鲁公开课 - 生物医学工程探索课程节选