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Transcript
Kennel Cough (Upper Respiratory Infection)
What is it?
Kennel cough is an infectious bronchitis of dogs characterized by a harsh, hacking cough that most
people describe as sounding like “something stuck in my dog’s throat.” This bronchitis may be of brief
duration and mild enough to warrant no treatment at all or it may progress into pneumonia depending
on which infectious agents are involved and the immunological strength (how well they fight bacteria
and viruses) of the patient. An uncomplicated kennel cough runs a course of a week or two and entails
frequent fits of coughing in a patient who otherwise feels active and normal. Uncomplicated cases do
not involve fever or listlessness, just lots of coughing.
Numerous organisms may be involved in a case of kennel cough; it would be unusual for only one
agent to be involved. Infections with the following organisms frequently occur concurrently to create a
case of kennel cough:
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Bordetella bronchiseptica (bacteria)
Parainfluenza virus
Adenovirus type 2
Canine distemper virus
Canine influenza virus
Canine herpesvirus (very young puppies)
Mycoplasma canis (a single-cell organism that is neither virus nor bacterium)
Canine reovirus
The classical combination for uncomplicated kennel cough is infection with parainfluenza or adenovirus
Type 2 with Bordetella bronchiseptica. Infections involving the distemper virus or canine influenza are
more prone to progressing to pneumonia but pneumonia can readily result in any dog or puppy that is
sufficiently young, stressed, or debilitated.
What does a coughing dog sound like?
Dogs can make an assortment of respiratory sounds. Usually a cough is recognizable but it is important
to be aware of another sound called a reverse sneeze. The reverse sneeze is often mistaken for a
cough, a choking fit, sneezing, retching, or even gasping for breath. In fact, the reverse sneeze
represents a post-nasal drip or tickle in the throat. It is considered normal especially for small dogs and
only requires attention if it is felt to be excessive. The point here is to know a cough when you hear
one. A cough can be dry or productive, meaning it is followed by a gag, swallowing motion, production
of foamy mucus (not to be confused with vomiting). There are some great videos on the website
veterinarypartner.com demonstrating what a cough may sound like.
How Infection Occurs
An infected dog sheds infectious bacteria and/or viruses in respiratory secretions. These secretions
become aerosolized and float in the air where they can be inhaled by a healthy dog. They can also be
transmitted on toys, food bowls or other objects.
The incubation period is 2 to 14 days, which means a dog may be carrying the organism but not
showing any symptoms and can still be contagious to other dogs. Dogs are typically sick for 1-2 weeks,
and infected dogs could possibly be contagious for 2-3 months (in extreme cases) following the
infection.
How is Kennel Cough Treated?
Although most cases will go away on their own, we like to think we can hasten recovery with
antibiotics to directly kill the Bordetella organism. Kennel cough may be treated with cough
suppressants to provide comfort during natural recovery. Alternatively, antibiotics and cough
suppressants can be combined.
Prevention through Vaccination
Vaccination is only available for: Bordetella bronchiseptica, canine adenovirus type 2, canine
parainfluenza virus, canine distemper, and canine influenza. Infections with other members of the
kennel cough complex cannot be prevented. What does this mean? Basically there are several strains
of kennel cough and the vaccine does not protect against all. A great analogy is we as humans get flu
shots every year; however, this does not mean we will not get the flu, but it does lessen our chances.
Most vets give the vaccination yearly, but we strongly recommend if you plan on using boarding,
daycare, grooming, or training services, or you plan on taking your dog anywhere they will interact
with other dogs on a regular basis they receive the vaccination every six (6) months. This vaccination
and/or booster should also be given at least five (5) days prior to using any of these services.
What if Kennel Cough does not improve?
As previously noted, this infection is generally self-limiting. It should be at least improved partially after
one week of treatment. If no improvement has been observed in this time then a re-check exam would
be a good idea. Failure of kennel cough to resolve itself suggests an underlying condition.
What do I do if I suspect my dog has kennel cough?
If you suspect your dog has kennel cough please notify us and any other facility your dog may have
visited. We can look and see when your dog visited us last and notify all other clients whose dogs may
have had contact. This helps us prevent the spread of kennel cough within our facility. Please do not
bring your dog to classes, daycare, grooming or boarding. We would also ask that you make sure your
dog is symptom free for at least 1 week before returning.