Answer: By being vector and transferring the disease.
Step-by-step explanation:
The dogs, bats and raccoons are vectors that carries the bacteria and virus for the disease like rabies.
The infected animals like raccoons, monkeys, bats, wolves and many more animals contains the virus of this disease in their nerves and saliva of the symptomatic rabid animals.
The route by which it is transmitted is bite by these animals to human beings.