Rabies in Dogs
Rabies is a virus that may affect the brain and spinal cord of all mammals, including dogs, cats and humans. Though preventable, there is good reason that the word “rabies” evokes fear in people. The disease has been reported in every state except Hawaii, and everywhere throughout the world except for Australia and Antarctica. Annually, rabies causes the deaths of more than 50,000 humans and millions of animals worldwide. Once symptoms appear, the disease results in fatality.
How Would My Dog Get Rabies?
Since animals who have rabies secrete large amounts of virus in their saliva, the disease is primarily passed to dogs through a bite from an infected animal. It can also be transmitted through a scratch or when infected saliva makes contact with mucous membranes or an open, fresh wound. The risk runs highest if your dog-or any pet-is exposed to wild animals. The most common carriers of the rabies virus in this country are bats, raccoons, skunks and foxes. In the United States, rabies is reported in cats more than in any domestic species. If there are also cats in your household, it’s important to make sure they are vaccinated and kept indoors.
What Are the General Symptoms of Rabies?
Initially, a dog who’s become infected may show extreme behavioral changes such as restlessness or apprehension, both of which may be compounded by aggression. Friendly dogs may become irritable, while normally excitable animals may become more docile. A dog may bite or snap at any form of stimulus, attacking other animals, humans and even inanimate objects. They may constantly lick, bite and chew at the site where they were bitten. A fever may also be present at this stage.
As the virus progresses, an infected dog may become hypersensitive to touch, light and sound. They may eat unusual things and hide in dark places. Paralysis of the throat and jaw muscles may follow, resulting in the well-known symptom of foaming at the mouth. Disorientation, incoordination and staggering may occur, caused by paralysis of the hind legs. Other classic signs of rabies include loss of appetite, weakness, seizures and sudden death.
How Long After Infection Do Signs of Rabies Show?
The virus usually incubates from two to eight weeks before signs are noticed. However, transmission of the virus through saliva can happen as early as ten days before symptoms appear.
Which Dogs Are Most at Risk for Contracting Rabies?
Unvaccinated dogs who are allowed to roam outdoors without supervision are most at risk for infection. They’re exposed to wild animals and have a greater chance of fighting with infected stray dogs or cats.
How Is Rabies Diagnosed?
There is no accurate test to diagnose rabies in live animals. The direct fluorescent antibody test is the most accurate test for diagnosis--but because it requires brain tissue, it can only be performed after the death of the animal.