Thank you everyone for all the responses. The more I read the more I wonder what is "right"! I've always (with no real scientific backing) believed the least amount of vaccines that can be given and still protect the pup is ideal and what I'd like to do.
My vet called me last night and after talking with her for a bit she told me she felt they were both protected for 3 years from the date of their last DHPP vaccines, and she would be happy to write a letter stating as much. I'm hopeful the daycares will accept these letters since I already begrudgingly have to give them the bordatella every 6 months.
If not, I will have to look into the singles for distemper and I guess parvo for Lane, though this December will be 3 years since Rory's last DHPP and I assume if her titer was low/negative now that it will be in December too.
I also found it very interesting she mentioned that they switched labs performing the titers and that the one they currently use, which is less expensive, takes more of a general overview and since they have switched from a place in Colorado, which is much more expensive, but more specific (sorry I am so unscientific) that they have had many more negatives/lows come back since the switch.
I guess my biggest question is how much not having the puppy shots may affect a dog, but I see where kjc mentioned when a dog has an unknown history they should get a DHPP and Rabies, then repeat in one year, then start the 3 year schedule, which I believe is what I have done with Lane.
Thanks again to everyone for reading my little novel.
