Prevention
Plague in cats and dogs: risk to owners and how to prevent it
Quick answer
- Cats are susceptible to plague and can transmit the bacterium to humans, including through the pneumonic form.
- Dogs are relatively resistant but can carry infected fleas into the home.
- Strict flea control is the main protective measure for owners.
- Sick animals with fever and swollen nodes should be assessed by a veterinarian.
Cats and plague
Cats are particularly relevant in the plague cycle. They can become infected by hunting infected rodents and, being susceptible, develop the disease — including the pneumonic form. A cat with pneumonic plague can transmit the bacterium to humans through droplets and contact with secretions.
Dogs and plague
Dogs are relatively resistant to infection, but not immune. Their main role is carrying infected fleas into the home and close to people.
Signs of plague in animals
- Fever and lethargy.
- Swollen, painful lymph nodes (especially in cats).
- Loss of appetite and weight loss.
- Difficulty breathing and cough, in the pneumonic form.
- Wounds or abscesses, often from rodent bites.
See a veterinarian
If your animal shows these signs, seek veterinary care and report that it roams outdoors or has contact with rodents. Do not handle secretions without protection.
How to prevent it
- Keep flea control up to date, with products recommended by your veterinarian.
- Prevent cats from hunting rodents; in risk areas, keep them indoors.
- Do not feed wildlife and avoid attracting rodents around the home.
- Use gloves and a mask when handling sick or dead animals.
- Wash your hands after contact with animals and before eating.
What if my pet is diagnosed with plague?
A diagnosis of plague in an animal is a public-health event. Surveillance is usually activated, owners and contacts are assessed, and antibiotic prophylaxis may be indicated for exposed people. Follow the guidance of health authorities and your veterinarian.
Frequently asked questions
Can my cat transmit plague to me?
Yes, although it is rare. Cats are susceptible and can transmit the bacterium through droplets (pneumonic form) and contact with secretions. Flea control and veterinary care reduce the risk.
Do dogs transmit plague?
Dogs are relatively resistant, but can carry infected fleas into the home. The main risk associated with them is transporting vectors.
How do I protect my pet from plague?
With strict flea control, preventing it from hunting rodents and, in risk areas, keeping it indoors.
What should I do if my animal has swollen nodes and fever?
See a veterinarian immediately and report that the animal has contact with rodents or roams outdoors. Do not handle secretions without protection.
Sources
Medical review
Review by a licensed health professional is being arranged. This educational content is based on reference sources (WHO, CDC and medical literature) and does not replace evaluation, diagnosis or treatment by a health professional.
How this content was produced
- Who
- Produced by the Equipe editorial do Peste.com.br, the editorial team responsible for gathering, verifying and classifying public information about plague (Yersinia pestis).
- How
- Information is compiled from official and scientific sources (WHO, CDC and national health authorities) and from recognised news outlets. Every statement is classified as confirmed, reported or unconfirmed, and each article lists its sources.
- Why
- To offer clear, source-based information in Portuguese about plague and to separate verified fact from rumour. This content is educational and does not replace medical advice.
- Medical review
- Review by a licensed health professional is being arranged; no credential is claimed until a real professional is credited.
- Last review
See our sources and methodology and the editorial team.A revisão por profissional de saúde habilitado está em processo de credenciamento. Assim que concluída, o nome e o registro serão informados nesta página e nos dados estruturados.