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Brucellosis (Brucella suis) in dogs factsheet


Brucellosis is a disease caused by infection with a type of bacteria (Brucella). This disease is common in many parts of the world, but it is rare in Australia. Brucella bacteria infect a range of animals.

Brucella suis usually infects pigs. Brucella suis infection is widespread in Queensland’s feral pig population and it has also been detected in the feral pig population in northern New South Wales (NSW).

Brucella suis can be transmitted to people from animals.

Topics include:

  • How do dogs become infected?
  • How can I protect my dogs?
  • What are the signs in dogs?
  • Diagnosis in dogs
  • What if my dog tests positive for Brucella suis?
  • What precautions should be taken around infected dogs?
  • NSW legislation

Important user information

  • Infected dogs may potentially spread the infection to humans and other animals.
  • Infected dogs should be euthanased or treated with antibiotics AND desexed – there are no treatments that guarantee to cure infection in dogs.
  • All other dogs in contact with the infected dog should be tested and considered infectious until negative.
  • People who develop symptoms after contact with potentially infected animals should seek prompt medical advice.


Primefact 450 Second Edition

Published: Jul 2017