TORONTO - Authorities confirmed on Tuesday another case of mad-cow disease in the western province of Alberta - the second animal found to have the deadly brain-wasting disease in Canada since U.S. officials announced last month they would resume the cross-border cattle trade in March.
Officials said no part of the cow - the third case of the disease in Canada - has entered the human or animal feed system.
But the announcement may strengthen the position U.S. cattlemen who have sued to block the lifting of the ban. The cattlemen say allowing the trade will hurt U.S. producers and put consumers at risk.
U.S. Department of Agriculture officials said Tuesday they are sending a team to Canada to evaluate the latest mad-cow case before deciding whether to change their plan to resume imports.
Ron DeHaven, administrator of the Agriculture Department's Animal and Plant Health Inspection Service, said the agency is confident that protections in place in Canada and the United States will safeguard U.S. consumers and livestock.
The latest case of bovine spongiform encephalopathy (BSE) was discovered in an animal under 7 years old. Canadian Agriculture Minister Andy Mitchell said the case was unrelated to the second case of the disease, which was confirmed Jan. 2 and also involved an Alberta cow.
"A third case of BSE in a cow in Canada has been confirmed today through our surveillance system," Mitchell said in a news conference in Ottawa, the nation's capital. "This is not unexpected, as we have already acknowledged that there is a low level of incidence of BSE in North America."
The latest sick cow was born after a 1997 feed ban in Canada removed the use of animal remains in feed, commonly believed to be the cause of the disease. This makes this third Canadian cow with BSE more serious than the others because the cause could be much more difficult to trace.
However, Dr. Brian Evans of the Canadian Food Inspection Agency said the cow was most likely exposed to feed before the ban came into effect in 1997.
