If I had a dog that needed to go to a groomer (which I don't) I wouldn't go to one who allows unvaccinated dogs...just like I wouldn't take mine to training either if they allowed unvaccinated dogs which they don't as all dogs must have a C5 for a very good reason.

Parvo and kennel cough (Canine Infectious tracheobronchitis) are highly contagious and I know dogs can still get kennel cough when vaccinated...but what really scares me is breeds like Rottweilers...Dobermanns and GSDs are at a higher risk from Parvo even when vaccinated...not good.