Area residents will have some more time to comment on a proposed plan to vaccinate bison in Yellowstone National Park against brucellosis. YNP officials decided to extend the public comment period on a Draft Environmental Impact Statement (EIS), which looks at vaccinating bison against brucellosis without capturing or handling the animals.

The purpose of remote vaccination of bison inside the park is to reduce the brucellosis infection rate in order to increase tolerance for bison on historic and essential winter range outside the park in Montana when cattle are not present, according to a press release from YNP.

"The park believes the most logical method for remote delivery of the vaccine is to use a compressed air rifle to deliver an absorbable projectile containing the vaccine," the release stated.

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