There have been some debate in the veterinary field regarding the usefulness of certain vaccines versus the risks of vaccination. (petsmagazine.com.sg)
The fact that you receive a postcard from your veterinarian suggesting that your dog is «due» for certain vaccines does NOT mean your dog must have those vaccines! (whole-dog-journal.com)
Some adult dogs might receive certain vaccines annually, while other vaccines might be given every 3 years or longer. (laurelwoodvets.com)