Miscarriage Due to Bacterial Infection (Brucellosis) in Dogs
Brucellosis in Dogs
Brucellosis is a contagious bacterial disease that affects several animal species. In dogs, this condition is caused by a bacterium known as Brucella canis. The bacteria are typically spread through breeding and through contact with tissue remains from miscarried pregnancies, but may also be spread through an infected mother’s milk. An infected bitch may spontaneously abort the pregnancy, or may have a marked decrease in her fertility levels. If she does carry the puppies to term, they often still die as a result of infection, since puppies have undeveloped immune systems that are not capable of fighting these aggressive bacteria.
Brucellosis is highly contagious amongst dogs. It frequently affects kenneled dogs, but dogs that have never been kenneled may also become infected. This disease is responsible for a decrease in 75 percent of pups that are weaned in breeding kennels.
The Brucella bacterium has zoonotic properties, meaning that it can affect humans, and possibly other animals as well. Though chances for human infection are found to be quite low, it is still best to take preventative precautions while treating an infected dog. An extra sanitary environment, along with personal protection (e.g., disposable gloves) should be standard until the infection has been eradicated entirely.
While brucellosis can affect any breed of dog, it is commonly seen in beagles. The causative organism has a tendency to replicate successfully in the reproductive organs of both male and female dogs. It causes abortion and infertility in female dogs, and testicular atrophy and infertility in male dogs.
Symptoms and Types
You will need to provide a thorough history of your dog's health leading up to the onset of symptoms. Once your veterinarian has thoroughly examined your dog, standard fluid samples will be taken for laboratory testing. However, often it is the case with Brucella canis that it is not diagnosed with standard blood tests; laboratory test results are usually normal.
A combination of various serological tests may be necessary in order to confirm the diagnosis, but usually, a titer test will verify that your dog is infected with the Brucella bacterium. This test measures your dog's antibody levels and will show whether there are specific antibodies to the Brucella organism in your dog's blood. To confirm the presence of Brucella, your veterinarian will take blood samples to grow the organism on culture media in the laboratory. Similarly, cultures of vaginal fluids or semen can also be used for isolation of the causative organism. As the lymph nodes are also affected by this infection, a lymph node biopsy can also be used in some cases for diagnostic purposes.
Small structures that filter out the lymph and store lymphocytes
Denotes an animal that is still able to reproduce or is free of cuts and scrapes
a condition in which an animal must be controlled in some manner in order to prevent a disease from spreading
The white fluid produced by males in the testicles for reproduction
The term used to refer to certain lab tests that use liquid blood parts to detect disease
Inducing death on an animal or putting them to sleep
A female dog that has not been spayed.
A protein in the body that is designed to fight disease; antibodies are brought on by the presence of certain antigens in the system.
The wasting away of certain tissues; a medical condition that occurs when tissues fail to grow.
The singular form of the word bacteria; a tiny, microscopic organism only made up of one cell.
The process of removing tissue to examine it, usually for medical reasons.
To end the pregnancy early; in animals, usually used to describe similar circumstances as a ‘miscarriage' in humans. An abortion (n.) is used to describe the ending of a pregnancy whether purposeful or accidental.
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