asymptomatically

There are quite a number of asymptomatically infected in the population, and they may discharge hepatitis A virus at certain times and under certain conditions.

无症状感染者在人群中为数少，在一定时期和条件下也可排出甲肝病毒，但此时带毒者常活动如，易管理，因而作为传染源有重要意义。