Hi! I have a 4 1/2 mo old puppy who, in 3 weeks, will be attending puppy obedience class. I'm not a fan of giving too many vaccines anyway, but since she'll be exposed to many other puppies, the vet recommends that she gets the kennel cough and influenza vaccines prior to the class. Is she too young for these vaccines? Should I skip the classes and wait until she's older?