Which is a reason to euthanize dogs diagnosed with brucellosis?

• A. For cosmetic reasons
• B. To keep the disease from spreading to other dogs
• C. Because the dog is old
• D. There is a vaccine

Answer: (B)

Preventing transmission to other dogs is the main idea here. Brucella canis, the bacteria behind canine brucellosis, is contagious among dogs and can be shed in urine, vaginal secretions, semen, and other discharges. Because treatment is often lengthy and may not fully eliminate the infection, an infected dog can remain a source of infection for others. In many cases, removing the dog from contact with other dogs to protect the rest of the population is the responsible choice. Cosmetic reasons, the dog’s age, or the presence of a vaccine do not justify euthanasia in this situation.