It is easier to prevent outbreaks of hatred than to end them.

Historians disagree as to whether the fire played a part in preventing subsequent major outbreaks.

The program is using techniques that scientists say may one day also be used to help prevent outbreaks of mad cow disease.

These efforts are necessary, but not sufficient, to prevent future outbreaks.

You may be able to take prescription pills to prevent cold sore outbreaks.

Iraqi leaders continued to meet in emergency sessions to prevent further outbreaks of violence.

Ultimately, though, finding the source of the disease may help health authorities to prevent future outbreaks.

Failure to do so may result in the inability of health officials to prevent further outbreaks.

Public health officials took steps to prevent further outbreaks of the disease.

Nonetheless, researchers say, some work is being done on preventing outbreaks.