My Cavalier Bentley is 7 years old now, last time he had vaccinations he got a very painful and scary reaction. He is over-due for vaccines but I simply will now put him through that again, ever. I talked to the vet at the clinic I use (I may switch vets) about having titers done from now on.... his reply, "titers are very expensive, more expensive than vaccines; and there is only one place/lab in the U.S. that does titer testing." I find this hard to believe, especially the "only one place" that will run tests that the vets send in. Please help! Any information is very appreciated.