The vaccine is not causing an enlarged heart. That is a congenital condition. They are born with it, it worsens as they grow and some are diagnosed earlier than others.
Don't rely on a regular vet for the diagnosis...they need to be seen by a cardiologist and if they do indeed have this condition...that's who needs to be treating them any way.
__________________ Deb, Reese, Reggie, Frazier, Libby, Sidney, & Bodie |