If your dog has started making a harsh, honking cough that sounds like something is stuck in their throat, you are not alone. Australian vets report that kennel cough tends to surge through the cooler months, and the winter of 2026 has been no exception, with clinics around the country fielding a steady stream of coughing dogs. The good news is that for most healthy pups it is a passing nuisance rather than a serious illness, but knowing the signs — and when to worry — makes all the difference.
What Is Kennel Cough, Really?
“Kennel cough” is the everyday name for canine infectious respiratory disease, a contagious infection of the airways. It is not caused by a single germ. The bacterium Bordetella bronchiseptica is the usual headline act, but it often teams up with viruses such as canine parainfluenza and canine adenovirus. Together they irritate the windpipe and voice box, which is why the cough is so distinctive.
It spreads the way a human cold does — through the air when dogs cough or sneeze, and via shared bowls, toys and bedding. Anywhere dogs gather closely is fair game: boarding kennels, doggy daycare, grooming salons, training classes, dog parks and even a busy footpath. The name is a little misleading, because your dog does not need to have set foot in a kennel to catch it.
Why Winter Brings a Spike
Cooler, damper air can blunt the natural defences in your dog’s airways, and we all tend to bunch up indoors when the weather turns. Add school-holiday boarding and a busier social calendar at the dog park, and you have the perfect conditions for an airborne bug to move quickly from one dog to the next. Many practices see two or three mini-outbreaks a year, and these commonly land in winter or over peak holiday periods.
Signs to Watch For
The hallmark of kennel cough is a forceful, dry cough that often ends in a gag or retch, sometimes bringing up a little white froth that owners mistake for vomiting. Most dogs stay bright and keen for dinner, which helps tell it apart from more serious illness. Common signs include:
- A persistent honking or hacking cough, often worse with excitement or pulling on the lead
- Gagging or retching, occasionally with a small amount of clear or white froth
- Sneezing, a runny nose or watery eyes
- Mild tiredness while otherwise eating and behaving normally
Red Flags That Need a Vet
Most cases clear on their own, but some dogs need prompt care. Book a vet visit if you notice any of the following, as they can signal a chest infection or pneumonia:
- Fever, lethargy or a clear loss of appetite
- Laboured or rapid breathing, or blue-tinged gums
- A cough that drags on beyond three weeks or keeps getting worse
- Any symptoms in a young puppy, a senior dog, a flat-faced breed, or a dog with an existing illness
How It Is Treated
For an otherwise healthy dog, kennel cough is usually managed with supportive care at home: plenty of rest, easy access to water, and a calm environment away from smoke, dust and strong cleaning fumes that irritate the throat. Swapping a neck collar for a harness while your dog is coughing eases the pressure on their windpipe. Most dogs bounce back within one to three weeks. Your vet may prescribe a cough suppressant or, where a bacterial chest infection is suspected, a course of antibiotics — but these are not needed in every case.
Practical Prevention for Aussie Owners
You cannot wrap your dog in cotton wool, but a few sensible habits dramatically lower the risk to your pup and to other dogs in your community:
- Keep the kennel cough vaccine up to date — it is usually given yearly, or every six months for dogs that board, compete or socialise heavily. Many boarding and daycare facilities require it.
- If your dog is coughing, keep them home and away from parks and other dogs until at least a few days after the cough settles.
- Wash food and water bowls, bedding and toys regularly in hot, soapy water.
- Choose well-ventilated, clean boarding and daycare facilities, and ask whether they have had recent cough cases.
- Support general immunity with a good diet, fresh water and regular exercise.
It is worth remembering that the vaccine reduces severity and spread rather than offering an ironclad guarantee, because so many different germs can be involved. Vaccinated dogs can still pick up a mild case, so the home hygiene and common-sense steps above remain your best back-up.
The Bottom Line
Kennel cough is the canine equivalent of catching a cold doing the rounds — common, highly contagious and, for most dogs, a short-lived annoyance. Through an Australian winter the smartest moves are to keep vaccinations current, hold a coughing dog back from the park, and keep a close eye for the red-flag signs that warrant a vet check. Do that, and your best mate will be back to their bouncy, lead-tugging self before you know it. If you are ever unsure, a quick call to your local clinic is always the safest path.
