Canine Parvovirus is a deadly communicable disease transferred on shoes, clothes, tires and hands. When the breeder asks you not to visit other places where dogs have been before coming to their premises, and ask you to observe other precautions, they do so because they want to protect their dogs and puppies from this invisible threat.
Although we have never had any parvo outbreaks here at DogGone Doodles, we respectfully request that we have no visitors until the puppies have had their first set of shots and are ready to go their new homes.
Talk to your Vet about vaccination schedules and when will it be safe for your pup to be out in public where other dogs have been.