🐾 Quick answer: Kennel cough causes a harsh honking cough in dogs and is highly contagious but usually mild. Learn the symptoms, when home care is enough, when to see a vet, and how the Bordetella vaccine helps prevent it.
Kennel cough is the dog world’s equivalent of the common cold — highly contagious, usually mild, and most dogs recover on their own within 1–3 weeks. But like human colds, it can occasionally become something more serious.
What Is Kennel Cough?
Kennel cough — officially infectious tracheobronchitis — is an upper respiratory infection caused by a combination of bacteria and viruses. The most common culprit is Bordetella bronchiseptica, often alongside canine parainfluenza virus. It spreads rapidly through airborne droplets in places where dogs gather — kennels, dog parks, training classes, grooming salons.
The Classic Symptom
A harsh, dry, honking cough — often described as sounding like a goose honk or a seal bark. Many owners mistake it for something stuck in the throat. The cough is triggered by excitement or exercise and may end with a retch or white foam. Despite the dramatic sound, most dogs remain bright, alert, and continue eating normally.
Treatment
Mild kennel cough in healthy adult dogs often needs no treatment — rest, water, and time. Use a harness instead of a collar to reduce throat irritation. Keep away from other dogs while symptomatic. Your vet may prescribe antibiotics, cough suppressants, or anti-inflammatories if symptoms are moderate or your dog is a puppy, senior, or has underlying conditions.
Prevention
The Bordetella vaccine — available as an injection or nasal spray — significantly reduces the risk and severity of kennel cough. Most boarding kennels require it. It doesn’t cover every strain but dramatically reduces the chances of serious infection.
- Cough getting worse after 5–7 days rather than improving
- Dog becomes lethargic, stops eating, or develops a fever
- Breathing becomes laboured or rapid at rest — possible pneumonia
- Your dog is a puppy, elderly, or has underlying heart or lung disease
For most healthy adult dogs, kennel cough is a nuisance rather than a crisis. With rest and basic care, the vast majority recover quickly and completely.
The PawPulse Team
Researched using current veterinary guidelines. Always consult your vet for medical advice about your pet.