美国疾病控制和预防中心代理主任理查德·贝瑟对大会表示，疫情的传播形势“没有减弱”且“广泛的传播”仍在继续。

Dr Richard Besser, acting director of the US Centers for Disease Control and Prevention, told the meeting the outbreak is "not winding down" and "widespread transmission" continues.

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美国疾病控制中心负责科研和健康事务的代理主任舒哈特说，美国有比关闭边境更有效的方法来防范病毒的蔓延。

Rear Admiral Anne Schuchat, the Center for Disease Control's interim science and public health deputy director, said there are more effective ways to curb the spread of the virus.

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美国疾病控制预防中心代理主任贝瑟(richard Besser)说，随着时间的推移，将会出现更严重的病例。

Richard Besser, acting director of the U. S. Centers for disease Control and Prevention, said that over time 'more severe' cases of disease are likely to surface.

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