User blog comment:AlphaMuslim/Hybrid creature/@comment-50.156.175.196-20141125165826

It's possible I guess, but I don't think it's likely that would happen. Vampire venom is very harmful to Shapeshifters and it retards their healing capabilities. They cannot be turned by vampires. True werewolves are completely immune to vampire venom, in its pain-producing and transformative properties. When a human is bitten by a vampire, the venom seals the humans veins as it transforms the human body into the nearly indestructible vampire form. So I don't think it would be possible. But if it did happen, I would think the creature would be even stronger than a vampire.