PS you asked about titer. We have not done it, but since B&D are older, we will do it going forward. I read the other day that distemper vaccines can provide protection to some dogs for much longer than the 3 year AAHA recommended dosing. YT member Dwerten does titers.
For more info on vaccines, check out the AAHA guidelines - it is very informative. Not all vets follow these guidelines. We see AAHA accredited vets so ours do.
http://www.aahanet.org/PublicDocumen...s06Revised.pdf