Bovine tuberculosis strain tested in B.C. cow is distinct, not seen in Canada

Canada's chief veterinary officer says test results from a case of bovine tuberculosis found in a cow in British Columbia last November show a strain not seen before in Canada or the United States.

Jaspinder Komal says this TB isn't connected to any cases previously detected in wild animals or domestic livestock.

Komal says a majority of the animals on a farm in B.C.'s southern Interior where a cow was first identified with bovine tuberculosis have been tested.

He says four confirmed cases of the disease have been found in the herd, including the cow first confirmed to have the disease when it was slaughtered last October.

The Canadian Food Inspection Agency says the animals did not enter the food chain and there was no risk to human health.

The agency has traced the movements of animals that entered or left the infected herd in the past five years and movement controls have been placed on about 18,000 animals in B.C., Alberta and Saskatchewan.