How Long is a Dog Contagious With Kennel Cough: A Comprehensive Guide

A dog with kennel cough is contagious for about 2 weeks, but can continue shedding the virus for up to 6-14 weeks. Kennel cough, also known as infectious tracheobronchitis, is a highly contagious respiratory disease that affects dogs.

The condition is commonly transmitted in places where there are numerous dogs, such as kennels, dog parks, and shelters. It is caused by a combination of viral and bacterial infections, primarily from the bacteria Bordetella bronchiseptica and the parainfluenza virus.

Symptoms include a persistent, dry, hacking cough, sneezing, and sometimes a nasal discharge. While the condition is typically not life-threatening, it can be uncomfortable for dogs and may require treatment. We will discuss the duration of contagion in dogs with kennel cough and ways to prevent the spread of the disease.

Kennel Cough: Understanding The Contagious Period

A dog with kennel cough remains contagious for about two weeks, even after the symptoms have subsided. During this time, dogs should be kept away from other pets to prevent further spread of the infection. Close attention should be paid to proactive measures to minimize the risk of transmission and timely treatment.

How Long is a Dog Contagious With Kennel Cough: A Comprehensive Guide


Frequently Asked Questions On How Long Is A Dog Contagious With Kennel Cough

How Long Does Kennel Cough Last In Dogs?

Kennel cough can last for 1-2 weeks. In severe cases, it may persist for up to 6 weeks. However, with proper treatment and care, most dogs recover within 1-2 weeks.

Can Humans Get Kennel Cough From Dogs?

While it’s rare, humans can contract kennel cough from infected dogs. The illness, known as human respiratory coronavirus, typically causes mild symptoms and is not a major concern for healthy individuals.

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What Are The Symptoms Of Kennel Cough In Dogs?

Common symptoms of kennel cough include a persistent cough, retching, nasal discharge, and lethargy. In some cases, dogs may also experience a loss of appetite and mild fever. Monitoring your dog’s symptoms is crucial for prompt treatment.


Understanding the contagious period of kennel cough is crucial for responsible pet ownership. By knowing the duration a dog can spread the infection, owners can take necessary precautions to prevent the spread of the disease. Keeping a watchful eye on symptoms and seeking prompt veterinary care will aid in the recovery process and contribute to the overall health and well-being of the infected dog and other pets in the vicinity.