The risk of severe illnesses increases with age.

患重病的风险随着年龄的增加而增加。

This suction towards death can frequently explain severe illnesses.

拽向死亡的吸力通常也能解释严重的疾病。

Some of the most severe illnesses can occur in young children, like kidney failure due to E. coli O157.

最严重的疾病可能发生在儿童身上，如大肠杆菌o 157引发的肾衰竭。

We do not, at present, expect this to be a sudden and dramatic jump in severe illnesses and deaths.

目前，我们还不认为这是引发重症和死亡的突然和重大变化。

Influenza is a serious public health problem that causes severe illnesses and deaths for higher risk populations.

流感是一个严重的公共卫生问题，可在高危人群中造成严重疾病和死亡。