If you work with a holistic vet that uses single vaccines, this is a perfect way to custom formulate
an ideal vaccine schedule, however, the majority of people don't, and that's why the puppy or kitten series of vaccinations became popular — there was no waiting and it was much less expensive as compared to titering.
Your pet is only protected when at the
ideal level, so it's important that
vaccine checks and
scheduled boosters be a regular part of your pet's veterinary care.