Below is the result of
duration of immunity testing on over 1,000 dogs.
The difference between the one - year and three - year vaccines is they ran a longer
duration of immunity test to be able to make a label claim of three years.
Not exact matches
[18] See page 7 under «Serological
Testing to Determine the
Duration of Immunity (DOI)» in Day, M.J., Horzinek, M.C., Schultz, R.D. World Small Animal Veterinary Association's (WSAVA) Guidelines for the Vaccination
of Dogs and Cats.
I would, as a practitioner, recommend yearly blood titers (
tests to analyze the level
of protection) to determine the
duration of immunity as a safe guard to assure proper protection for your cat.