Case of bovine TB found in cow from British Columbia farm
By Medicine Hat News and The Canadian Press on November 20, 2018.
VANCOUVER — A cow from a farm in British Columbia’s southern Interior has tested positive for bovine tuberculosis but the Canadian Food Inspection Agency says there is no risk to human health or the food supply. And there’s no immediate connection begin made to a major quarantine in southeastern Alberta 2016 after six animals were found to have the disease on a single farm near Jenner. A statement on Tuesday from the agency’s chief veterinary officer says suspicious lesions were found on the organs of a mature beef cow sent to a slaughterhouse in Brooks, Alberta on Oct. 26. The statement says no parts of the animal entered the food chain. Tests confirmed bovine tuberculosis on Nov. 9, and the agency says officials are now trying to identify the specific strain and trace movements of the animal to track the potential spread of the disease. Canada is considered officially free of bovine TB although the statement says isolated cases may occur, but it also says human cases of the disease are very rare. Six cases of bovine TB were identified in cattle from a single Alberta farm in 2016, leading to tests of 34,000 animals from 145 farms. That outbreak was declared contained after tens of thousands of head were culled and thousands more were subjected to testing. But those tests showed the disease did not spread from the original farm and international shipments of Canadian beef were never interrupted. Exposure can only occur through the passage of fluids from an animal to an open skin sore, extended close contact with an animal with active respiratory tuberculosis or by drinking unpasteurized milk from an infected animal. “Affected producers and industry associations, as well as federal and provincial departments, are co-operating in the ongoing investigation,” the statement says. “The common goal is to protect human health, protect the health of Canadian livestock and, in the process, maintain market access.” The B.C. case should not affect Canada’s current international status in which all provinces are considered free of bovine tuberculosis, and the agency statement says this status supports international trade for Canada’s beef industry. Investigation updates will be posted on the food inspection agency website as more information is available. 14-13
