Incurable Dog Infection Spreads: Are Your Pets At Risk?

Cases of the bacterial infection Brucella canis have nearly doubled in the UK over the past year, prompting urgent warnings from veterinarians. This incurable disease primarily affects a dog's reproductive system, leading to symptoms such as pregnancy loss, breeding problems, and swollen testicles. Lameness and lethargy can also be indicators.

The surge in Brucella canis is strongly associated with dogs imported from Eastern Europe. Between April and June 2026, 164 cases were reported, a significant increase from 87 in the same period last year. All documented UK infections have involved imported dogs, their offspring, or those who had contact with them.

While the infection spreads between dogs through reproductive fluids or milk, it also poses a risk to humans. People in close contact with infected dogs, like vets and breeders, face a higher risk of contracting Brucella canis. Human symptoms can include fever, sweating, headaches, tiredness, and joint pain, though infections are typically treatable with antibiotics.

Unfortunately, treatment options for dogs are limited, often leading to euthanasia or neutering to prevent further spread. This was tragically seen with two police dogs in Wiltshire last month. Owners suspecting Brucella canis in their pets should consult a veterinarian and contact their local health protection team.