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 government is investigating a suspected new case of mad cow disease that went unreported for months because a veterinarian forgot to send a sample of the suspect animal's tissue to the ...
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