How old should a puppy be before being vaccinated? Can elderly dogs be vaccinated?
There have been no reports of any age-related adverse effects due to this vaccine in healthy dogs vaccinated as young as four months or in elderly dogs. Because we do not have any information on the vaccination of puppies that are younger than four months we do not recommend vaccination of puppies in this age group. Regardless of age, the vaccine should only be administered to healthy dogs.
