Yellowstone National Park bison
1:36 pm
Tue January 14, 2014

Remote vaccination of bison not likely for Yellowstone Park herd

Yellowstone National Park administrators say shooting wild bison with vaccine-laced "biobullets" to prevent the spread of an animal disease would be too ineffective to justify the expense.

Credit NASA

Today's announcement means a program that's led to the periodic capture and slaughter of thousands of migrating bison will continue.
 
       About half of Yellowstone's 4,600 bison test positive for Brucellosis, which causes pregnant animals to prematurely abort their young.

      Edward O'Brien has more with Yellowstone Park spokesman, Al Nash, on the history of this "remote vaccination" concept.