The H1N1 (swine) flu, a new influenza virus, whose outbreak tested the public health systems of the whole world when preventing and controlling the spread of an epidemic.
甲型H1N1(猪)流感这一新型流感病毒的突然爆发是对世界公共卫生系统防治流行病传播的一次考验。
The H1N1 (swine) flu, a new influenza virus, whose outbreak tested the public health systems of the whole world when preventing and controlling the spread of an epidemic.
甲型H1N1(猪)流感这一新型流感病毒的突然爆发是对世界公共卫生系统防治流行病传播的一次考验。
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