
Tuberculosis in Dogs
Tuberculosis in dogs usually has only one result for your pet; they are euthanized. This disease was very rare in dogs at one time as they have a natural resistance to both forms, but just like in humans, it is starting to resurface again as it has become antibiotic resistance in most cases.
There is no current effective treatment for dogs, or is there?
The very sad part about tuberculosis in dogs is that although it is a zoonotic disease, meaning it can be shared and transferred between humans and pets, in most of the recorded cases dogs caught the disease from people instead of people catching it from dogs.
This disease has historically been one of the most feared infectious diseases in history, but primarily in people. Infected humans show very few initial symptoms but an infected dog will show symptoms and is the first member of the family to be diagnosed. As a result and out of fear of safety for the family, the dog is put down.
But it does not have to be that way as it can be treated in dogs, but very few dogs ever get the chance.
Types:
There are two types of Tuberculosis; Mycobacterium tuberculosis which is the human form, and Mycobacterium bovis, which is known as the cattle form of the disease. Dogs can become infected with either form of the bacterial infection and although it is thought to be primarily a respiratory disease, it can also infect your dog's intestines.
Most all dogs that become infected with this disease catch it from inhaling the bacteria into their lungs, usually by contact with a member of their human family. It is caused by the bacteria M. tuberculosis. The World Health Organization estimates that over 13 million people have TB and about 1.5 million die from it each year, primarily in third world countries where there is no treatment.
If left untreated, it is fatal. The problem with dogs and this disease is that they very seldom have the opportunity to be treated. It almost always affects the lungs, but it can also occur outside of the lungs and will affect the nervous, lymphatic, or genitourinary systems. It can also affect your pet's bones and joints.
And just like people, it usually affects young dogs and immune suppressed dogs. When an infected human or dog coughs or sneezes, the bacterium are spread. People can also spread it simply by talking. However, repeated contact with an infected agent is required for these bacteria to actually become infective.
What makes Tuberculosis in dogs also so very sad is that only 5 percent of people that are infected with the M. tuberculosis bacteria actually will develop TB. Instead they have latent TB, do not get sick, and are not contagious.