The industry as a whole has lost more than $1 billion in sales since May because of mad cow disease.

At the time, scientists were not aware of mad cow disease.

Evidence of mad cow disease has never been found in young cattle.

Q. What can companies be doing about mad cow disease that they are not?

Then came the fear of mad cow disease, which reduced sales 20 to 30 percent further.

Three and a half years ago, that country identified its first case of mad cow disease.

It plans to test only 40,000 for mad cow disease this year.

What are we to think of the decisions on mad cow disease?

Many positive things can be said about mad cow disease.

The program did not find any cases of mad cow disease until June 25, 2005.