In recent history, the 1918 influenza pandemic was very severe.

在近代史上，1918 年的流感大流行非常严重。

For influenza pandemics, they're usually considered to be in a post-pandemic phase when flu cases return to seasonal levels.

通常来说，当流感病例回到季节性水平时，人们便认为进入后疫情阶段了。

Until now, the majority of the victims worldwide had been aged 15 to 34, an age bracket unusual for influenza pandemics.

目前为止，世界范围内的大多数患者年龄在15至34岁之间，而这一年龄段并不是大多数流感大流行感染的主要目标。

This season has again given us some stark reminders that the threat of an influenza pandemic has by no means diminished.

这段时间再度给我们敲响了警钟，提醒我们流感爆发的威胁绝没有消失。

I wrote about this back in March, when I interviewed John M. Barry, author of a comprehensive history of the 1918 influenza pandemic.

今年三月采访 1918 年流感大流行通史的作者 John M. Barry 时，我写过相关文章。

No students dating back over 100 years since the historic influenza pandemic of 1918 have had this level of disruption to their lives during their student years.

自1918年历史性流感大流行一百多年以来，没有一个学生在学生时代的生活受到如此程度的扰乱。

If you think back on your history, the influenza pandemic that broke out during World War I killed about three times as many people worldwide as died in the war itself.

如果你回顾一下历史，在第一次世界大战期间爆发的流感大流行导致全世界死亡人数是战争本身死亡人数的三倍。

We knew the risk posed by pandemics. The UK maintains a risk register, a catalogue and assessment of the emergencies that could befall the country, and top of the list, at the start of 2020, was an influenza pandemic.

我们知道流行病的危险。英国有一本风险登记册，对可能发生在该国的紧急情况进行了分类和评估，2020年初排名第一的是一场流感大流行。