Roberta
Just wanted to chime in. According to Ron Schultz, passive exposure to rabies vaccine is "impossible". But I think it may be present in the saliva. I have dogs who've never been vaxed, never eaten bait, and I had 6 year old fitted and his titre came back better than just adequate. I wrote to him and he was coming up with crazy reasons (that the dog was infected in the past with a virus similar to rabies.....say what?!?! He them asked me to titre all my dogs thru hemopet. I can't afford that...not gonna happen.. Anyway I happen to know that I'm not alone.... Others have had ditto titres on dogs who've not been jabbed.
Parvo has happened here and over the years it has become more like a VERY mild flu. The only time I lost pups was the first couple times, then it stared to become milder and milder and most of the time now pups barely are symptomatic or completely asymptotic. I believe this to be TRUE HERD IMMUNITY (which doesn't happen with vaccines).