Welcome to YT!! Gus sounds like he is a very special boy! I have a son with Primary Immune Defect and he had to get monthly IV infusions of Gammaglobulin to help his body out since he had no T cells to fight infections. Their was a Therapy dog that would come into the office on Infusion day's and my son was in heaven when he came to his room. It's nice that Gus is able to bring love and joy to those kids he visits
