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在人类历史上,要问什么疾病在一次流行中对人危害最大,很多人都会答错,因为它竟是最不起眼的、几乎人人都得过的流行性感冒。
In the history of mankind, to ask what diseases endanger people in a pandemic most people will be right wrong, because it is actually the most humble, almost all people have had influenza.