Honestly, I don't think either vaccinosis or previously vaccinated dogs (or adult dogs at all, in the case of parvo) coming down with distemper or parvo are very common.
In many years of working with rural shelters, all of which have problems with parvo, I have seen I think two adult dogs come down with it - and most of the dogs in the shelters I deal with have never had a vaccine in their lives, including the adults. I have less experience with distemper as (thank goodness!) it's not common here.
Titers aren't all they're cracked up to be unfortunately and even though a high titer does show good immunitiy, a low titer doesn't necessarily mean low immunity. There are some interesting articles and threads about it.
But anyway, I think if your dog has a solid vaccine history, you will be fine going to an every three year plan or so. I actually do like to do the 1 year old vaccines but if they've had the puppy series then after the 1 year vax, I go to every several years.
In terms of your question, since I foster dogs from rural shelters you figure I'm dragging through more than the average pet owner's share of germs, I only do the DHLP vaccination on my personal 4 dogs every three years, and we have still never had a problem. I do vaccinate every year for kennel cough however, although I wouldn't if I didn't foster.
In many years of working with rural shelters, all of which have problems with parvo, I have seen I think two adult dogs come down with it - and most of the dogs in the shelters I deal with have never had a vaccine in their lives, including the adults. I have less experience with distemper as (thank goodness!) it's not common here.
Titers aren't all they're cracked up to be unfortunately and even though a high titer does show good immunitiy, a low titer doesn't necessarily mean low immunity. There are some interesting articles and threads about it.
But anyway, I think if your dog has a solid vaccine history, you will be fine going to an every three year plan or so. I actually do like to do the 1 year old vaccines but if they've had the puppy series then after the 1 year vax, I go to every several years.
In terms of your question, since I foster dogs from rural shelters you figure I'm dragging through more than the average pet owner's share of germs, I only do the DHLP vaccination on my personal 4 dogs every three years, and we have still never had a problem. I do vaccinate every year for kennel cough however, although I wouldn't if I didn't foster.