Can I get kennel cough from my dog?

Kennel cough is a highly infectious respiratory disease in dogs. The disease got its name because infection and outbreaks often occur in kennels, where many dogs from various backgrounds are mixed together.  Some of the dogs in kennels may be carrying infectious diseases, and other dogs may be very susceptible these diseases - putting them all together in what can be a stressful environment for any dog creates a recipe for infection.

Kennel cough itself is more of a syndrome than a specific disease. It can be caused by a few different bacteria and viruses (and combinations thereof) that produce the same type of clinical signs. These pathogens include Bordetella bronchiseptica, Mycoplasma, canine parainfluenza virus, canine adenovirus-2, canine distemper virus and canine herpesvirus. Of these, only Bordetella bronchiseptica is a potential concern in terms of transmission to humans.  Bordetella bronchiseptica can cause respiratory infections in people, but this is probalby quite rare and largely confined to high-risk individuals, like those with a weakened immune system, who have had their spleen removed, who already have underlying respiratory disease of another kind, and pregnant women. The evidence of transmission of B. bronchiseptica from pets to people is relatively weak and circumstantial - it is not clear whether the human Bordetella infections in these cases were truly due to contact with a pet.

In households with individuals with a weakened immune system (e.g. HIV/AIDS, transplant or cancer patients), some measures that can be taken to help reduce the risk of transmission of Bordetella from pets include:

  • Avoid boarding dogs at kennels or veterinary clinics. If boarding cannot be avoided, ensure that dogs have been properly vaccinated against Bordetella bronchiseptica, and that the kennel or clinic requires all other dogs boarding there to be vaccinated as well.
  • Avoid obtaining a dog directly from from an animal shelter.
  • Wash your hands regularly after handling any dog, particularly if you've touched the dog's  nose or mouth.
  • Don't allow dogs to lick your face or hands.

The Bordetella vaccine for dogs is a modified live vaccine, meaning that a live but less virulent (pathogenic) form of the bacterium is administered to "prime" the immune system against regular Bordetella. Concern has been raised by some people that exposure to the vaccine strain could actually cause disease in high-risk individuals, whose immune systems might be unable to fight off even this "weaker" version of the bacteria.  It is unclear whether exposure to the vaccine strain actually poses any risk.  Nonetheless, it is reasonable to pay extra attention to avoiding contact with the dog's face for a day or two after vaccination. Also, it is probably wise for immunocompromised owners to not hold the dog when it is being vaccinated, in order to reduce the risk of exposure to the vaccine. 

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Dog kennels and Crates - July 21, 2009 4:32 AM
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Wondering - May 6, 2010 9:17 AM

You say not to get dogs directly from an animal shelter. How should you get a dog from an animal shelter?

Scott Weese - May 6, 2010 10:05 AM

If someone in the house has a weakened immune system, you shouldn't get an animal from a shelter. There are other sources of pets that don't have the same degree of risk. Another option is to have the dog live with someone else for a while after it's been adopted.

Dana Sion - November 12, 2014 10:19 PM

Quite true, many shelters now have extensive "fostering" programs similar to human foster homes(sadly probably nicer for the dogs) and the dogs are given room and board by a fostering volunteer off site from the shelter in a private home. This also keeps the dogs healthier and calmer but the dogs can be given basic training, brought back to a good weight and the temperament evaluated.

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