
All the puppies from this breeding will be Affected/carriers of dermatamyositis. They will all have the
disease, to some degree, and all will also pass it along to ALL of their offspring. These puppies have
only affected genes to pass along.
Even dogs mildly affected can produce dogs who are very severely affected.
This is the genetically variable part of this disease. We don't know how severely
affected a dog may be when it inherits this defective gene.
Dogs who are Affected/carriers should not be used in a breeding program, so that the incicence of this
disease will be diminished in the breeds affected. There is no DNA test available for dermatamyositis
at this time though Texas A&M is doing research. This can be a very severely dibilating disease.
Responsible breeders will eliminate from their breeding programs, all dogs that are Affected/carriers of
dermatamyositis, and eliminate or use with great caution any dog that is a carrier, even if that dog
is not affected itself. It is possible for some diseases to 'hide' for a few generations and then show up.
Ideally, breeders would use only normal unaffected dogs, but often a breeder is unaware of a defect
until it pops up in his or her breeding program. Such things can change a lifetime of effort when this
defective gene is inadvertently introduced into a bloodline. This is one reason DNA tests are so
important for breeders, especially in a disease like this one, that can hide for generations and
then pop up seemingly out of nowhere.
There are many breeders who have run into genetic issues who have changed their entire breeding
programs to stay clear of defects, as they appear. Just because one dog in a bloodline has a certain
defect does not neccessarily mean that all dogs from that bloodline are affected.