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又到秋冬之交,我国很多地方开始进入流感高发期。流感是由不同类型的流感病毒引起的,历史上的流感大流行曾经造成数千万人的死亡。接种流感疫苗是控制与预防流感大规模流行的有效办法。
At the turn of autumn and winter, many parts of our country have started to enter the high incidence of influenza. Influenza is caused by different types of flu viruses that have killed tens of millions of people in the past. Flu vaccination is an effective way to control and prevent the pandemic.