Health care-associated infections have long been established as the biggest cause of avoidable harm and unnecessary death in the health systems of high income countries.

长期以来，卫生保健相关感染一直是高收入国家卫生体系中存在的可避免伤害以及出现不必要死亡的最大原因。

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The U. s. Centers for Disease Control and Prevention says avoidable behaviors like cigarette use, poor diet and lack of exercise are the underlying cause of half of the deaths in the United States.

美国疾病预防控制中心表示，美国有一半的死亡是受到吸烟、不合理饮食以及缺乏运动等行为的潜在影响，而这些行为都是可以避免的。

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The U. s. Centers for Disease Control and Prevention says avoidable behaviors like cigarette use, poor diet and lack of exercise are the underlying cause of half of the deaths in the United States.

美国疾病预防控制中心表示，美国有一半的死亡是受到吸烟、不合理饮食以及缺乏运动等行为的潜在影响，而这些行为都是可以避免的。

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