The disease is more commonly known as Mad Cow Disease.

这种病一般更多地被称作“疯牛病”。

That is a textbook example of mad cow disease.

那是个典型的狂牛症病例。

Younger cattle are considered less at risk of mad cow disease.

月龄小的牛被认为感染疯牛病的几率相对较小。

Until now, there has been no U. S. reported case of mad cow disease.

目前为止，美国还没出现感染疯牛病的报导。

Many South Koreans fear that American beef is not safe from mad cow disease.

许多韩国人担心美国牛染有疯牛病，食用不安全。