S / he must have had at least one series of vaccines at least seven days prior to the first class. (spotmagazine.net)
While your puppy or kitten is undergoing its initial series of vaccines, you should try to avoid exposing him or her to other dogs or cats. (plainfieldanimalhospital.com)
Your puppy will receive his or hers first series of vaccines between 6 and 8 weeks of age. (puppy-training-solutions.com)