I think it's personal preference and what your comfortable doing. When the vac first came out, many moons ago
) I always vac'd my two, (now deceased dogs) they never contracted Lyme, nor any other tbd
's and never had any reaction to the vac.
When I got my aussie who is an MDR1 dog (another long story), I decided to be much more careful about what I was doing to my dogs. The next two GSD's, had also by this time, gotten about 4 years of lyme vac's..I stopped, all of my dogs have never contracted Lyme, (and I live in Lyme ct
) however, they ALL have contracted anaplasmosis (another tick disease of which there is no vac)...
My one male who passed away a year ago, always tested high for it, and we believe it led to his death. And on the 'flip' side, I know of quite a few who have NOT gotten the vac and unfortunately their dogs showed no clinical signs until they went straight into kidney failure, which by then was to late to save.
So, while it 'may' have it's use, it also may not. My vet has always told me, that they see more dogs WITH Lyme, that have NOT gotten the vac, vs dogs with Lyme, that DID have the vac.
But in the end, Lyme is nothing compared to the other Tick Borne Diseases of which there is no vac for..
Hope I haven't confused you..something to ponder anyhow