
I'm strongly of the opinion that boostering every year affects the autoimmune sustem.
The current feeing in America seems to be - to do the puppy jabs; boost at 14 months or so, then about every three years, and then in response to the results of antibody titres.
You may find
www.doglogic.com/vaccineinfo.htm interesting, but you have to get it all in perspective
Jo and the Casblaidd Flatcoats