influenza相关的词根或词缀是: flu

Hundreds died in the influenza that swept post-war europe .

数百名劳工死于战后席卷欧洲的流感。

The threat from influenza is real .

流感的威胁是实实在在的。

Resistance can develop to antiviral drugs used for influenza .

可对用于流感的抗病毒药物产生耐药性。

There are many more avian than human influenza viruses .

目前禽流感病毒比人流感病毒多得多。

Influenza pandemics have struck periodically in historic times .

历史上的流感大流行曾经给我们留下周期性的印象。