Puppies get some natural immunity from their mother's milk, but that tapers off as they get older. Here's where you and your vet come into the picture. You need to get started with puppy vaccinations when your little guy is about five or six weeks old. Your vet will give him his puppy shots over several weeks, up to about sixteen weeks. After that, booster shots will provide the continued protection your dog needs. For more details, visit pethospitals.blogspot.com/2021/08/dog-vaccinations-how-to-choose-right.html