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Kennel Cough: Signs and Symptoms

Reviewed by Missy Beall DVM, PhD on
Posted August 06, 2013 in Dog Diseases & Conditions A-Z

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Infectious tracheobronchitis , commonly known as kennel cough, is a canine respiratory infection caused by Bordetella bronchiseptica and canine parainfluenza virus. These pathogens attack the cilia lining the respiratory tract and cause inflammation of the upper airway. This leads to irritation of the airways and a dry cough. It also makes the animal more susceptible to a secondary infection. Although kennel cough is more common during summer, it can occur anytime.

How does your dog get it?
Kennel cough is VERY contagious. It is named kennel cough because it can quickly spread through a kennel and infect every dog. Kennel cough can be transmitted by aerosols released when a sick animal coughs, by direct contact with an infected animal, or by the sharing of contaminated objects. Kennel cough spreads rapidly when dogs are kept in close quarters (such as boarding facilities and animal shelters), but it can also spread if a dog greets an infected dog during a walk or drinks from a contaminated water bowl at the dog park.

Signs and symptoms
Any dog can get kennel cough, but puppies and unvaccinated dogs are at a greater risk. Kennel cough causes a persistent, nonproductive cough that may sound as if something is caught in your pet’s throat and they are gagging or trying to clear their throat. Others describe it as a deep honking cough. Symptoms ususally develop three to ten days after exposure to an infected animal. Animals with kennel cough will otherwise act and eat normally. Exercise or getting excited can make symptoms worse. 

Diagnosis
If you think your dog has kennel cough, see your veterinarian as soon as possible. Because there's no specific test for kennel cough, it's a diagnosis of exclusion. Your veterinarian will examine your dog to exclude other causes of a nonproductive cough, such as heart disease, fungal and parasitic infections like heartworm disease, a collapsing trachea, and cancer. Dogs with kennel cough usually have a history of exposure, i.e. newly acquired pets from a shelter, pet store, or breeder, or pets that have recently been boarded, to a groomer, recent boarding, training classes, dog shows, or outings to dog parks. Based on the examination and history, your veterinarian will determine whether they suspect kennel cough.

Treatment
Treatment depends on the severity of symptoms. In very mild cases, no

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