然而，甲型肝炎病毒感染也可能很严重，甚至会威胁生命。

However, HAV infections can also be severe and life threatening.

youdao

然而，甲型肝炎病毒感染也可能很严重，甚至会威胁生命。

However, HAV infections can also be severe and life threatening.

youdao