New Case of Mad Cow Disease in California

The US Department of Agriculture (USDA) confirmed the country's fourth case of mad cow disease in a dairy cow in California on Tuesday.

The first new case of mad cow disease in the US since 2006 has been discovered in a dairy cow in California, but health authorities said Tuesday

A new case of mad cow disease has surfaced in a dairy cow in California, but the animal was not bound for the nation's food supply and posed no danger, the Agriculture Department said Tuesday.