Kennel Cough: Symptoms, the Vaccine and When Your Dog Needs It

That harsh, honking cough your dog can’t seem to shake

If your dog has suddenly developed a dry, hacking cough that sounds almost as if they’ve got something stuck in their throat, kennel cough is very often the reason, and it’s one of the most common things dogs come to see us about here at Rock House Vets. It looks and sounds alarming the first time you hear it, particularly if your dog seems otherwise bright and happy in between coughing fits. That contrast is exactly what catches most owners off guard.

The good news is that kennel cough is rarely serious, and there’s a reliable kennel cough vaccine that helps protect against it. In this guide, we’ll walk through what kennel cough actually is, the symptoms to look out for, how the vaccine works, and when it’s genuinely worth having your dog vaccinated against it.

What is kennel cough, and how does a dog catch it

Kennel cough, known more formally as infectious tracheobronchitis, is inflammation of the airways that produces that distinctive harsh cough. It isn’t caused by a single bug. Several different bacteria and viruses can trigger it, sometimes together, with Bordetella bronchiseptica and canine parainfluenza being the two most frequently involved.

It spreads through the air in droplets from coughing and sneezing, and through direct contact between dogs, which is exactly why it moves so quickly through kennels, doggy daycare, group training classes and busy parks. Dogs don’t need to look unwell to pass it on either. A dog can be shedding the infection before they show any signs at all, which is part of why it’s so widespread and so hard to avoid entirely.

Symptoms of kennel cough to watch for

The hallmark sign is a dry, harsh cough that can sound like honking, and it often gets worse with excitement, exercise, or when a collar puts pressure on the throat. Some dogs retch or gag at the end of a coughing fit, and it can look quite dramatic even when your dog is otherwise perfectly well in themselves. A little nasal discharge or mild lethargy sometimes goes alongside the cough, though many dogs with kennel cough are still eating, playing and wagging their tail as normal between episodes.

That combination, a dog who sounds awful but seems fine, is genuinely one of the most common patterns we see with kennel cough, and it’s a large part of why it takes owners by surprise the first time round.

How long does kennel cough last, and how long is it contagious

Most cases run their course over one to three weeks. The cough itself is often the last thing to settle, so don’t be alarmed if your dog seems fully back to themselves in every other way whilst still coughing occasionally in the mornings or after exercise.

Contagiousness usually lasts longer than the visible symptoms. Dogs can continue shedding the infection for several weeks after they’ve stopped coughing, sometimes up to a month in total, so it’s worth keeping your dog away from other dogs for longer than you might expect, even once they seem completely well again.

When kennel cough is more than a simple cough

Please get in touch if your dog goes off their food, seems lethargic or withdrawn rather than just quieter than usual, develops a fever, struggles to breathe or seems to be working hard just to get air in, or if the cough hasn’t started to ease after a couple of weeks. Puppies, older dogs, and dogs with existing heart or lung conditions are more vulnerable to complications such as pneumonia, so we’d always rather see them sooner. If you’re ever unsure, it’s always worth calling rather than waiting to see how things develop.

The kennel cough vaccine: what it does and how it’s given

The kennel cough vaccine protects against Bordetella bronchiseptica, one of the main culprits behind the condition, and in some formulations also covers canine parainfluenza. It’s most commonly given as a quick squirt up the nose rather than an injection, which sounds worse than it is. Most dogs tolerate it well, and it’s over in seconds.

Protection typically builds within a few days of vaccination and lasts around twelve months, so it’s usually given annually alongside your dog’s annual vaccinations. It won’t stop every possible cause of kennel cough, because so many different bugs can be involved, but it significantly reduces the risk and tends to make any case that does develop milder and shorter.

How much does the kennel cough vaccine cost

The vaccine itself is a modest addition to your dog’s regular vaccination visit rather than a separate expense, and we’re always happy to talk you through exact pricing when you call to book. If you’d like to spread the cost of routine care across the year, it’s also worth asking about our pet health care plan, which many of our clients use to budget for vaccinations, boosters and check-ups.

Does my dog actually need the vaccine?

Not every dog needs the kennel cough vaccine, and that’s worth saying plainly rather than assuming every dog should have it as a matter of course. It’s most strongly recommended for social dogs who mix with others regularly, at daycare, boarding kennels, training classes, dog shows or busy parks and beaches. Most boarding facilities and many training classes will actually ask for proof of a recent vaccination before they’ll accept your dog, so it’s worth checking well ahead of any planned stay.

If your dog lives a quieter life with minimal contact with other dogs, the conversation is a little different, and it’s something we’re happy to talk through as part of routine pet vaccinations when you bring them in.

Caring for a dog with kennel cough at home

If your dog has been diagnosed with kennel cough, rest is genuinely the best medicine. Keep them away from other dogs until they’ve fully recovered, since they’ll still be contagious even as symptoms ease, and avoid situations that trigger coughing fits where you can, such as pulling on a collar. A harness rather than a collar and lead can make a real difference here, taking the pressure off an already irritated throat.

Keep an eye on their appetite and energy levels rather than the cough itself as your main guide to how they’re doing. A dog who’s still eating, drinking, and generally themselves between coughing fits is usually managing well. Please don’t give your dog any human cough medicine or over-the-counter remedies without checking with us first, since several common ingredients aren’t safe for dogs.

When to call Rock House Vets

Kennel cough is something we see and manage regularly, and in the vast majority of cases, a bit of time and TLC at home is all that’s needed. But if your dog has any symptoms that concern you, if the cough is lingering longer than a couple of weeks, or if you’d simply like a check-up for peace of mind, we’re always here, alongside the wider veterinary services we offer at our Wolverhampton clinic.

Keeping your dog’s routine vaccinations up to date, including their annual kennel cough cover, is one of the simplest ways to protect them and the other dogs they meet. If you’re due a booster or would like to discuss whether the kennel cough vaccine is right for your dog, take a look at our dog vaccinations in Wolverhampton page.

Call for a compassionate conversation on 01902 271 757, or contact us here, and the team will be glad to help.