Adapted From
www.healthypets.in
Todays Tips-Do vaccinations always work?
Regrettably no, it does not. There are a small portion of animals whose immune systems do not respond in the normal manner to vaccines, or for that matter to natural infections. If a vaccine is administered after its stated expiration date and/or hasn't been stored in accordance with the manufacturer's instructions it will not not be effective. By way of reassurance, a survey of over 15,000 dogs was vaccinated against distemper, in an area where is was common and less than 1/2 % contracted the disease.
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