JEB stands for Junctional Epidermolysis Bullosa - it is a recessive disease Genetic Testing is Available
JEB affects integrity of the skin. Affected horses have fragile skin that blisters easily. Blistering of the mouth and exungulation (loss of the hoof) are also seen. You can see the condition when the foal is born and foals are usually put down right away. There is no effective treatment.
JEB1 affects Belgians
JEB2 affects American Saddlebreds .