The story will gently teach children how to prevent the disease (疾病) in a language that they can easily understand.

这个故事将以更容易理解的方式教孩子如何预防该疾病。

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It will help kids remain calm in the hard time, and encourage them to help family members to prevent the disease.

它会帮助孩子在艰难时期保持冷静，并鼓励他们帮助家人预防疾病。

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But it doesn't prevent the disease altogether.

但是它不能完全阻止这种疾病。

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There is no vaccine to prevent the disease and no special drug to treat it.

VOA: special.2009.04.13

So, this is the stage at which you prevent disease in the Salk vaccine.

那么,这就是索尔克氏疫苗,防止疾病传播的方法

耶鲁公开课 - 生物医学工程探索课程节选

If you're trying to prevent a disease that only occurs at a rate of 20 per 100,000 people you have to give the vaccine to millions in order to see if the number goes down.

如果你尝试去防治一个,发病概率为十万分之二十人的疾病,那么就必须将疫苗分发给数百万人,以观察疫苗能否降低发病率

耶鲁公开课 - 生物医学工程探索课程节选

The best way to prevent the disease is to quit smoking, says Dr. Sims.

CNN: Vitamin E may protect lungs

By stopping drug use before it starts, we can prevent the disease of addiction and create stronger neighborhoods across our country.

WHITEHOUSE: The White House

More to the point, the Chinese drug is used after a victim contracts malaria--it does not prevent the disease, as does DDT.

FORBES: Fact and Comment