We have only done two events so far this year because of Mike's back surgery (had his 7th spinal fusion in May), whereas we usually to 10 to 12 shows a year. Plus, Andy's lumbar stenosis has gotten worse in the past year, so I don't take him to many M&Gs because he won't lay down and he gets all wobbly. Nevertheless, we have a lot of contact with other Greyhounds plus Ecstasy and Tribute still do M&Gs. For these reasons, I get bordatella immunizations for all three dogs twice a year (before Gettysburg and before Dewey), just to have some measure of protection. Like Pam said, it's pretty much a crap shoot because the strain changes so much and so quickly, but I feel better knowing that I did something to protect them. With two 12-year-olds, I worry that a bout of kennel cough could be more than either one of them could handle, plus then I'd have to assume the other two would come down with it as well.
Lois