Kennel Cough in Dogs: Signs, Spread and What to Do

Kennel cough is the common name for a group of infections that affect a dog's airways. The name suggests boarding kennels, but it spreads anywhere dogs breathe the same air — parks, training classes, daycare, groomers and vet waiting rooms. Most cases are mild, but some need treatment, and every case needs managing so other dogs do not catch it.

What It Sounds Like

The classic sign is a harsh, honking cough, often followed by a retch or gag that owners mistake for something stuck in the throat. It is often worse after exercise, excitement or pressure on the collar.

Other possible signs:

• Runny nose or eyes
• Sneezing
• Bringing up white foam after coughing
• Mild tiredness

When to Call the Vet

Call your vet if your dog has a cough, so they can advise — and call promptly if:

• Your dog is lethargic or off food
• Breathing is fast or laboured, even at rest
• There is a fever or thick nasal discharge
• The cough lasts more than a week or is getting worse
• Your dog is a young puppy, elderly, a flat-faced breed, or has a heart or lung condition

Coughing has many causes besides kennel cough, including heart and airway conditions, so a cough that does not clear up always needs to be checked.

Tell the practice about the cough when you phone. Many will ask you to wait in the car so other dogs are not exposed.

Caring for a Dog With Kennel Cough

• Rest — keep walks short and calm
• Switch from a collar to a harness to avoid pressure on the throat
• Keep your dog away from smoke and strong fumes
• Make sure your dog is drinking
• Follow any treatment your vet prescribes

Protecting Other Dogs

Dogs can remain infectious for some time after the cough settles. Ask your vet how long to keep your dog away from others, and in the meantime:

• Skip daycare, classes, groomers and boarding
• Avoid parks and nose-to-nose greetings
• Tell your dog walker and anyone your dog has recently played with
• Do not share bowls or toys with other dogs

Vaccination

Vaccines are available against some of the infections involved. They do not cover every cause, but they can reduce the risk and severity. Many boarding kennels and daycares require one, sometimes given a set number of days before the stay. Ask your vet whether it is right for your dog and check the timing well before you book boarding.

Frequently Asked Questions

Can people catch kennel cough?

Transmission to healthy people is very rare. People with weakened immune systems should ask their doctor about any concerns.

Can cats catch kennel cough from dogs?

Some of the organisms involved can affect cats. Keep a coughing dog and cats apart where possible and ask your vet if your cat develops symptoms.

Can a vaccinated dog still get kennel cough?

Yes, because vaccines do not cover every cause. Vaccinated dogs often have milder symptoms.