I just recently spoke to a friend of mine who just finished his vet tech degree. He said the vaccine regimen that they felt was best based on research they did at school was as follows... First shot at 6 weeks, second at 9 and third at a year old. That is it until the dog reaches a advanced age. He said some felt that they didn't even need any when they reached the advanced age. I previously gave mine shots at 6,10,and 14. And then would follow up with a yearly booster every couple years. I think I am going to stick with the 3 round method myself simply cause I know it works. But I do think I will stop giving the boosters til they are 7 or 8 years old then I will probably just give one more. Here is a link to a pretty interesting article on the subject.

http://www.dogs4dogs.com/blog/2011/12/1 ... #more-1323