With this new Lab I got, the trainer I got him from had gotten him from the other owner that needed tp find a home for him, They said they would try to get the vaccine report on the Dog. But, because the prior owner is in the Hospital dealing with Cancer, if they can't get the list of shots he has had; what is the best way to handle this , from a healthcare standpoint ? If I can't verify when certain shots were given, when can they be given again? Concerned mostly with RABIES, PARVO , DISTEMPER ,LEPTO .