The use of vaccine titer tests can help you decide whether or not your puppy is completely protected from disease after her "puppy shots," or if your adult dog really needs any more core vaccines.
It's a similar situation with annual or semi-annual so-called vaccine "boosters" - not many people know much about their dogs' vaccination status, so they take their veterinarians' word that their dogs are "due" for more vaccinations.
The truth is, there is no single vaccination protocol that will protect all dogs for all things, without over-vaccinating most of them. Vaccination really ought to be determined on a case-by-case basis, because each dog's risk factors are unique, based on his age, genetic inheritance, current health, geographic location, and lifestyle.
That said, there is a very useful tool that can help an owner gain solid information about whether her dog is likely to be protected against the most common infectious diseases: the vaccine titer test. Positive test results can also give a dog owner some solid ammunition for countering those who blindly promote (or require, in the case of some boarding or training facilities) so-called "current" vaccinations, which can mean many different things to different people.
To read more about vaccinations, purchase the ebook Vaccinations from Whole Dog Journal.