>I was wondering why we don't use multi vaccines that have the parvo >vaccine in them? From what I understand of ADV it is a parvo virus. So >wouldn't the parvo shots help reduce infection or help the body build an >immunity to the vaccine. Of course, nothing is a definite but I thought >this might be a good idea. I recently asked this very same question of a vet working for one of the large vaccine manufacturers. Here's what he replied: "It has been hypothesised that vaccination against parvovirus might induce immunity to Aleutian disease- and this statement has actually appeared in a textbook. However I am unaware that anyone has ever performed a challenge study to demonstrate such cross-protection truly exists." Eric Corbett [Posted in FML issue 4942]