Four cows at a dairy farm in Colorado tested positive for bovine tuberculosis, which could threaten the state's TB-free status and result in burdensome trade restrictions and disease-testing requirements. However, state veterinarian Keith Roehr, who also is involved in the national animal ID plan, said at a conference that disease-defense procedures are changing. "We are preparing vets to be deployed in emergency situations. I think we should do the same thing with producers," he said.

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