Feline Rabies is an inflammatory infection that specifically affects the gray matter of the cat’s brain and its central nervous system (CNS). The primary way the rabies virus is transmitted to cats in the United States is through a bite from a disease carrier: foxes, raccoons, skunks, and bats. Infectious virus particles are retained in a rabid animal’s salivary glands to better disseminate the virus through their saliva.
Once the virus enters the cat’s body, it replicates in the cells of the muscles and then spreads to the closest nerve fibers, including all peripheral, sensory and motor nerves, traveling from there to the CNS via fluid within the nerves. The virus can take up to a month to develop, but once the symptoms have begun, the virus progresses rapidly.
Parasites often go unnoticed because they are “silent”. Intestinal parasites that are more common have adapted so well to their hosts (your cat), that they are living in balance and cause no observational health issues. This can always change though, because when the parasites become too numerous the pet’s health is affected. The best approach, because of their silent nature, is to try to keep pets completely free of them before the balance becomes disturbed.