A Canadian official acknowledged that his country held onto samples from a cow infected with mad cow disease for four months, possibly allowing potentially sick cows into the food chain. Dr. Claude ...
iculture said last week that a sample submitted by a private veterinarian returned "non-definitive test results" and will undergo further analysis -- both in the United States and England -- for ...
WASHINGTON The Agriculture Department acknowledged Wednesday that it used only one test for mad cow disease, one with a record of failure, in 9,200 samples, despite its effort to expand surveillance ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results