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The Dogs Most Likely to Suffer a Vaccine Adverse Event

Analyzing the records of over 4.6 million dogs at more than 1,000 veterinary clinics shows a clear trend as to which dogs are more likely to react within three days of receiving a shot. Find out more about how vaccines can induce vaccinosis - a condition that some vets won't acknowledge.

vaccine adverse events in dogs


  • A recent large-scale study of vaccine adverse events in dogs revealed that certain categories of dogs are at higher risk for vaccine adverse events than others
  • The study researchers looked at the records of over 4.6 million dogs over a 5-year period, and concluded that small dogs, those of certain breeds, spayed females, dogs around 1 year of age, and those receiving multiple vaccines in a single visit are at highest risk for vaccine adverse events within three days of administration
  • The study also concluded the rabies vaccine results in the highest number of moderate to severe adverse events
  • Vaccinosis differs from the acute, often immediate adverse reactions to a vaccine that were the subject of the study; the condition is recognized primarily by holistic and integrative veterinarians as a chronic reaction to not only the altered virus contained in vaccines, but also to the chemicals, adjuvants, and other components of tissue culture cell lines as well as possible genetic changes that can be induced by vaccines
  • Fortunately, there is much you can do as your pet's primary advocate to ensure your dog's risk of adverse vaccine reactions is minimal

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