A resurgent population of deer, along with mice--the reservoir host for the bacterium--coupled with increased outdoor activities by humans, has helped ensure spread of the disease.
(A resurgent population of deer, along with mice; coupled; with increased outdoor activities; by humans) (A resurgent population of deer, along with mice--the reservoir host for the bacterium--coupled with increased outdoor activities by humans,; has helped; ensure)
A resurgent population of deer, along with mice A resurgent population of deer, along with mice--the reservoir host for the bacterium--coupled with increased outdoor activities by humans,
coupled has helped
with increased outdoor activities by humans
ensure