By Dial A Vet Veterinary Team
Bordetella bronchiseptica is a bacterium frequently involved in canine infectious respiratory disease complex, often called kennel cough. Dogs pick it up where noses and shared air meet: boarding kennels, daycare, shows, training classes, and sometimes vet waiting rooms. Many cases are mild and self-limiting, yet puppies, seniors, and dogs with other diseases can become quite unwell.
Key takeaways
- Bordetella is one of several germs that cause kennel cough style illness.
- A harsh honking cough, gagging, and nasal discharge are classic signs.
- Most otherwise healthy adults recover with rest and veterinary guidance.
- Seek care promptly for breathing effort, lethargy, poor appetite, or puppy coughs.
- Vaccination reduces risk but does not make infection impossible.
How Bordetella fits into kennel cough
Kennel cough is a syndrome, not a single germ. Viruses such as parainfluenza and canine adenovirus, plus bacteria like Bordetella and Mycoplasma, can act alone or together. Stress, poor ventilation, and crowding raise risk. See kennel cough in dogs and Bordetella and other causes.
Signs to watch for
- Sudden dry, honking cough
- Gagging or retching after coughing (sometimes bringing up foam)
- Mild nasal or eye discharge
- Lower energy or reduced appetite in some dogs
- Fever in more significant cases
- Rarely, progression to pneumonia with faster breathing and lethargy
When it is an emergency
Contact a vet urgently if your dog:
- Breathes hard at rest or has blue-tinged gums
- Will not eat or is markedly lethargic
- Has a productive cough with fever and depression
- Is a young puppy, brachycephalic breed, or has heart disease and starts coughing
- Collapses or coughs up blood
Contagion and household tips
Infected dogs can shed organisms for days to weeks. Isolate from other dogs as advised, wash hands, and avoid daycare or dog parks until your vet clears return. Cats and, rarely, immunocompromised people can be affected by Bordetella species in unusual situations; discuss household risks with your clinic if relevant.
How vets diagnose and treat
History (recent boarding, cough sound) and exam often guide a kennel cough working diagnosis. Testing may be used for severe, lasting, or outbreak cases. Care can include rest, cough management, and antibiotics when a bacterial component or pneumonia is suspected. We do not list drug doses here. Most mild cases improve over one to three weeks, though cough can linger.
Prevention
- Discuss Bordetella vaccination before boarding or social activities; see Bordetella vaccine
- Prefer well-ventilated facilities with sick-dog policies
- Keep core vaccines current and reduce stress where possible
- Do not share bowls with unknown dogs during outbreaks
Cough etiquette in the community
Keep coughing dogs at home, walk them away from popular sniff spots, and notify daycare if signs started within days of a visit. Wash collars and beds. Soft harness walks are better than excited play while airways are irritated. Most mild cases improve with time and rest, but "wait and see" is the wrong plan when breathing effort, appetite loss, or puppy age raises the stakes.
Pneumonia warning signs
When Bordetella or mixed kennel cough pathogens move deeper into the lungs, dogs become quieter, eat less, and breathe faster. Gum colour may pale. These dogs need examination, possible X-rays, and supportive care rather than another day of hoping the honk will fade. Puppies and brachycephalic breeds escalate faster, so thresholds for going in should be lower.
After the cough fades
Continue isolation for the period your vet recommends even if the honk is quieter, because shedding can continue. Deep-clean bowls and wash bedding. Reintroduce dog sports gradually; a hard training weekend too soon can prolong airway irritation. If cough returns within days of restarting daycare, call the clinic before sending the dog back into the group.
FAQ
Can vaccinated dogs still get Bordetella?
Yes. Vaccines reduce severity and likelihood but are not perfect shields.
How long should my dog stay home from daycare?
Follow your vet's advice; many recommend waiting until the cough has resolved and any isolation period ends.
Is human whooping cough the same?
Related bacterial family, different species and context. Still practise hygiene around coughing pets.
Does honey help the cough?
Ask your vet before trying any home remedy. Honey is unsafe for very young puppies and is not a treatment for pneumonia.
Talk with a vet
If your dog has a new honking cough after boarding or social contact, a Dial A Vet veterinarian can help you triage severity and plan next steps. Book a Dial A Vet consult.
References
- Merck Veterinary Manual: Canine infectious respiratory disease
- Australian Veterinary Association: Vaccination guideline discussion for lifestyle vaccines
- WSAVA: Vaccination guidelines (lifestyle antigens including Bordetella)
Disclaimer: Educational only. This page does not replace an examination or advice from your own veterinarian. If you are worried about your pet right now, contact your local vet or nearest emergency animal hospital.