World Rabies Day


According to the Centers for Disease Control and Prevention, more than 55,000 people die each year worldwide due to the rabies virus. Although most of these deaths occur outside of the United States, it is still important to understand the seriousness this disease poses to humans and pets.

September 28 has been declared “World Rabies Day” to help raise awareness about this potentially fatal virus.  So what exactly is rabies?  Rabies is a zoonotic virus, meaning it can be spread from animals to people.  It is most often spread by a bite wound.  Once saliva from the infected animal enters the body, the virus begins to invade nerve endings and then spreads to the central nervous system, infecting the body’s peripheral organs.

There are two clinical forms of rabies, “furious” and “dumb.” In the furious form, the animal’s behavior can be altered, and the animal may become aggressive.  This form of rabies also causes paralysis of the laryngeal muscles.  The afflicted animal is unable to swallow, and often foams at the mouth from excessive salivation.

The dumb form manifests itself as a severe depression and the animal can have a lack of coordination and paralysis.  Both forms of rabies can cause what is called “fatal encephalitis”–inflammation of the brain–in this case due to the virus.  The encephalitis causes the animal to have seizures; paralysis will progressively worsen.  The animal will eventually go into a coma, which then leads to death.

In the U.S., rabies virus is spread by wild animals, including bats, skunks, foxes, and raccoons. People that are at a higher risk for contracting the rabies virus (veterinarians, researchers, wildlife biologists, people who travel to areas where rabies is prevalent, and so on) should seek prophylactic vaccination.

It is also important to keep your pet up to date on their rabies vaccine.  If an unvaccinated pet is bitten by a rabid animal, the pet should be euthanized to prevent the spread of rabies.

If a vaccinated cat or dog is bitten by a rabid animal, the pet would need to be revaccinated for rabies immediately and also be under a strict 45-day observation.  Unfortunately, once clinical signs are observed, there is no treatment for animals with rabies; the disease is fatal.

If a person is bitten by suspected rabid animal, it is important to report the bite to the local health department immediately.  Regardless of the vaccination status of the animal, the pet should remain under the observation of the owner for 10 days to detect clinical signs of rabies.

A person who is bitten by an animal that is suspected to have rabies should seek medical treatment immediately and may receive the rabies vaccination series.  Rabies is much easier to prevent than it is to treat, so every effort should be made to prevent this fatal virus in humans and pets.

For more information about rabies, speak with your local veterinarian.

By Jagpal S. Deo, DVM

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