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随着天气越来越冷,甲型H1N1流感不仅继续蔓延,而且在北半球进入了第二次高峰,感染人数和死亡病例激增。尽管如此,很多人对甲流仍存在
As the weather got colder, the H1N1 flu not only continued to spread, but also reached its second peak in the northern hemisphere, with a sharp increase in the number of infections and deaths. In spite of this, many people still exist on a stream