Veterinary Guide to Canine Kennel Cough 2025 🐶

By Dr. Duncan Houston BVSc

🧬 What Is Kennel Cough?

“Kennel cough” (also called canine infectious tracheobronchitis or CIRDC) is a highly contagious upper respiratory syndrome involving inflammation of the trachea and bronchi. Most cases are mild and self-limiting, but serious infections or pneumonia may occur.

🔬 Causes

• Bordetella bronchiseptica – the most common bacterium.
• Viruses: parainfluenza, adenovirus-2, influenza, distemper, coronavirus.
• Other bacteria: Mycoplasma, Pseudomonas, and E. coli may co-infect.

👥 How It Spreads

Transmitted via aerosol droplets, direct contact, or shared items like bowls, toys, and leashes. Puppies, senior dogs, and those in group settings (kennels, dog parks) are high-risk.

⚠️ Clinical Signs

• A dry, persistent “honking” cough, often triggered by excitement, leash strain, drinking, or tracheal palpation.
• Occasional retching or gagging after coughing.
• Mild nasal or eye discharge, sneezing.
• Fever, lethargy, loss of appetite—suggestive of pneumonia.
• Severe forms (e.g., distemper involvement) may involve GI or neurologic signs.

🔍 Diagnosis

1. History & exam: Onset after exposure, classic cough.
2. Auscultation: Evaluate lung sounds.
3. Imaging: Chest X-ray if pneumonia is suspected.
4. Lab tests: Only if severe or nonresponsive—PCR of swabs, culture.

🏠 Home Management

• Encourage rest and avoid exertion.
• Humidify the air with steam or a vaporiser.
• Provide warm, enticing meals; ensure hydration.
• Isolate from other dogs to prevent the spread.

💊 Veterinary Treatment

• Mild cases: May resolve in 7–14 days without meds.
• Symptom relief: NSAIDs for inflammation, antitussives like hydrocodone for persistent cough.
• Antibiotics: Only if bacterial pneumonia or prolonged signs (e.g., doxycycline, amoxicillin-clav).
• Hospitalization: For oxygen, IV fluids in severe pneumonia.

📈 Prognosis

• Good in mild cases—recovery in 1–2 weeks.
• Pneumonia or distemper-related cases require intensive care; puppies and older dogs have a higher risk.

🛡 Prevention

• Vaccination: Core vaccines (parainfluenza, adenovirus, distemper), Bordetella intranasal/IM annually or every 6 months for at-risk dogs.
• Hygiene: Disinfection of bowls, toys; avoid crowded dog settings during outbreaks.
• Quarantine: Isolate new or symptomatic dogs for 2–3 weeks.

📱 Ask A Vet Telehealth Support

• 📸 Upload videos of your dog’s cough to help assess severity remotely.
• 🔔 Get reminders for medications, rest periods, and rechecks.
• 🩺 Video consults to advise on home care and breathing support.

🎓 Case Spotlight: “Buddy” the Boarding Pup

Buddy, a 2-year-old Labrador, developed a honking cough 5 days after kennel boarding. Examination showed no pneumonia. At-home care with steam therapy, NSAIDs, and isolation led to full recovery in 10 days. Ask A Vet helped schedule meds, check-ins after 3 and 7 days, and arranged humidifier delivery. Buddy returned happy and healthy. 🐶💨

🔚 Key Takeaways

1. Kennel cough is a contagious, sometimes mild respiratory syndrome, but it may progress in high-risk dogs.
2. Characteristic honking cough with occasional gagging; milder cases don’t require antibiotics.
3. Diagnosis based on history and exam; imaging or lab tests if severe.
4. Supportive care with rest, humidification, NSAIDs, and cough suppressants is usually sufficient.
5. Vaccination, hygiene, and isolation help prevent outbreaks.
6. Ask A Vet telehealth supports remote assessment, care guidance, medication delivery, and preventative advice 📲🐾

Dr Duncan Houston BVSc, founder of Ask A Vet. Download the Ask A Vet app to support your dog’s respiratory health—from early remote triage and home remedies to medication coordination and outbreak prevention 🐶📲