CALGARY, Alberta (AP) -- Canadian officials say a case of mad cow disease has been confirmed in a beef cow from Alberta.
Federal Agriculture Minister Gerry Ritz said Canada's first case since 2011 will not affect Canada's international beef trade because Canada works under international protocols that allow for up to 12 cases of bovine spongiform encephalopathy, or BSE, a year.
The Canadian Food Inspection Agency says no part of the animal's carcass entered the human food or animal feed systems.
The CFIA says it is still trying to determine the history of the animal and how it became infected.
BSE is a fatal and untreatable wasting disease of the brain and nervous systems.
Humans who eat infected beef can develop a fatal disease called variant Creutzfeldt-Jakob disease. Fewer than 250 human cases have been reported worldwide.