How to Spot Kennel Cough in Dogs: Symptoms & Risks

Kennel cough, officially termed canine infectious respiratory disease complex (CIRDC), is a highly contagious respiratory illness in dogs caused by a combination of bacteria and viruses. In the United States, a primary cause is the bacterium Bordetella bronchiseptica, often alongside viruses such as canine parainfluenza virus.

This infection irritates a dog’s trachea and bronchial tubes, leading to a distinctive dry, hacking cough that’s often described as a honking sound, similar to a goose. Kennel cough tends to spread rapidly in settings where dogs gather closely, including boarding facilities, dog parks, grooming salons, dog daycare centers, and during obedience or agility training classes.

Although vaccines have significantly cut down the incidence of Bordetella-related kennel cough in the U.S., dogs remain at risk if unvaccinated or exposed to infected dogs. By recognizing the common symptoms and understanding risk factors, American dog owners can spot early signs of infection and take measures to protect their companions and canine communities.

1. Is your dog vaccinated against kennel cough?

Vaccination status plays a crucial role in your dog’s susceptibility to kennel cough. The Bordetella vaccine is widely recommended and sometimes required for dogs that will be boarded, attend doggy daycare, or participate in social dog events. Though it doesn’t provide 100% immunity, the vaccine lessens the chances of infection and usually results in milder symptoms if your dog does get sick.

Immunity from the vaccine fades over time, which is why many veterinarians in the U.S. advise yearly or biannual booster shots, depending on your dog's lifestyle and exposure risks. If your dog isn’t current on these vaccines, a persistent cough could likely be kennel cough.

2. Has your dog recently been exposed to other dogs?

Kennel cough spreads easily through airborne droplets released when infected dogs cough or sneeze. Direct contact isn’t necessary; sharing common spaces such as dog parks, grooming facilities, dog training classes, or shelters can transmit the infection. Interestingly, dogs can carry the infection and be contagious before showing any symptoms, making inadvertent exposure quite common.

If your dog has recently been around coughing or sneezing dogs in high-risk places, keep an eye out for any signs of respiratory illness.

3. What does the cough sound like?

The telltale symptom is a loud, harsh cough that's often dry and raspy, sometimes sounding like a honking goose. This coughing can be forceful and may cause your dog to gag or retch additionally. Some dogs shake their whole body while coughing, which can be tiring and distressing for your pet.

Kennel cough can present with either a dry cough or a cough that produces mucus, so both types warrant attention.

4. Is the cough sudden or continuous?

Symptoms of kennel cough usually begin abruptly within a week or two after exposure. Your dog may have sudden episodes of loud coughing that draw concern from owners and bystanders. Typically, the cough lasts between one and three weeks but might linger longer in some dogs, particularly those with weaker immune systems or underlying health issues.

5. Are there additional symptoms?

Besides coughing, your dog might display sneezing, runny nose, or watery eyes. Most dogs stay alert and active; however, mild lethargy and decreased appetite are possible. Watch for signs of high fever, trouble breathing, or bluish gums, which may signal a more severe condition needing immediate veterinarian care.

6. How to differentiate kennel cough from other illnesses

While coughing is a key indicator of kennel cough, not all dog coughs mean this illness. Other respiratory problems like pneumonia or collapsed trachea often cause wet, persistent coughs and more severe symptoms including difficulty breathing and lethargy. Kennel cough usually appears as a sudden, harsh, dry cough tied to recent contact with other dogs.

If you’re uncertain about your dog’s symptoms, seek a professional veterinary evaluation. A veterinarian might perform a physical exam, chest X-rays, or lab tests to diagnose accurately and recommend treatment.

7. What to do if you suspect kennel cough

If you think your dog has kennel cough or has been exposed, it’s best to keep them separated from other dogs to avoid spreading the illness. Provide a calm, stress-free environment and limit vigorous activity until symptoms improve.

Reach out to your veterinarian promptly to discuss your dog’s condition. Many cases resolve with rest and supportive care such as cough suppressants, but sometimes antibiotics are warranted if a bacterial infection is involved or secondary infections develop.

Preventing kennel cough involves vaccinating your dog before attending daycare, boarding, or social dog events, alongside maintaining clean living spaces and good hygiene practices.

Conclusion

Kennel cough remains a common respiratory infection among dogs in the United States, easily spreading in places where dogs socialize closely. Recognizing its hallmark honking cough, monitoring vaccination status, and understanding exposure risks are vital for responsible dog guardians.

By being vigilant and consulting your veterinario when symptoms arise, you can help your dog recover swiftly and protect others from infection. For more information on responsible dog ownership, consider finding reputable Labrador Retriever breeders who prioritize ethical breeding and health.