How a new Lyme vaccine for mice may protect people

The vaccine aims to disrupt the Lyme cycle before ticks ever bite humans

A close up photo of a tiny brown mouse poking the top half of its body out of a hole in a tree.

A new, edible vaccine neutralizes Lyme-causing bacteria in white-footed mice (Peromyscus leucopus).

Bill Draker/imageBROKER/Getty Images Plus

A vaccine to fight Lyme disease, decades in the making, has received a temporary green light from the U.S.