Some key points for vaccination for your puppy or kitten are listed below: Puppies and kittens are recommended to receive a series of booster vaccines to ensure healthy adolescence. Our recommendation is to begin the series as early as 6 weeks of age and to booster every 3 weeks until the series is complete. Canine Parvovirus is especially common in our area and it is highly encouraged to vaccinate against this virus, particularly in young dogs and puppies.