Board Thread:Lore Discussion/@comment-5983727-20130112120518/@comment-4378227-20130120015608

i think somewhere it said that the strain the dragonborn contracts is a more sophisticated strain, prolly due to drinking aela's blood and not just being bitten, other werewolves, like sinding transform under a moon, but the strain the dragonborn contracted, as well as the companions, is a different, easier to control version