戊肝感染随着年龄的增加而感染率上升，4 5岁以后维持一个相对稳定状态。

The prevalence of HEV infections increases with age, but remains stable level above 45 years old.

youdao

戊肝感染随着年龄的增加而感染率上升，4 5岁以后维持一个相对稳定状态。

The prevalence of HEV infections increases with age, but remains stable level above 45 years old.

youdao