现在我们又有一种重大全球传染病要应对。
And now we have another great global contagion to contend with.
今年世界卫生组织宣布H1N1型流感为全球性传染病。
The World Health Organization this year declared H1N1 a global epidemic.
过去每一百年内会发生三至四次的全球大型传染病疫潮。
Every hundred years there have been three or four pandemics.
过去每一百年内会发生三至四次的全球大型传染病疫潮。
Every hundred years there have been three o 'r four pandemics.
过去每一百年内会发生三至四次的全球大型传染病疫潮。
Every hundred years there have been three o 'r four pandemics.
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