Mad Cow Results on 2nd Animal ‘Inconclusive’

The Agriculture Department has received an “inconclusive” preliminary screening on a second animal indicating possible mad cow disease, but officials cautioned that the test is so sensitive that it does not mean another case has been found.

It’s the second such discovery in five days as part of the government’s rapid screening program. The only confirmed mad cow case in this country was discovered in Washington state in December, prompting more sophisticated screening programs.

The department said none of the meat made it into the nation’s food supply.