被美国疾病控制预防中心用来评估感染的方法落后于疾病爆发一两个星期。

The methods used to assess an infection by America's Centres for Disease Control and Prevention lag an outbreak by a week or two.

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美国疾病控制预防中心的数据显示，仅在美国，就有大约730万的不孕夫妇。

In the United States alone, infertility affects about 7.3 million couples, according to the U.S. Centers for Disease Control and Prevention.

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这个消息来自于世界健康成果排行的一份最新报道，由美国疾病控制预防中心发布。

That's according to a new report on the top global health achievements in the first decade of this century, put out by the U.S. Centers for Disease Control and Prevention.

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