BILLINGS, Mont. (AP) - Yellowstone National Park is extending the public comment period on a plan to use air rifles to vaccinate wild bison against brucellosis, a disease that ranchers fear could spread to cattle. Park spokesman Al Nash said Friday that some residents of northeastern Montana were concerned the government was going to transfer vaccinated bison to their part of the state. Nash says there are no such plans.
In the past decade, more than 3,000 migrating Yellowstone bison have been slaughtered to keep them away from cattle. Nash says the vaccination program would reduce but not eliminate brucellosis in bison. Comments are due by September 24th.