I think that the scene w Ginger was a great wink-wink for the fans but I think also it was there for a reason. He made a specific point of saying he was IMMUNE TO HEP-V. Perhaps if he is exposed to it he then becomes able to innoculate others (Bill.) Sookie is positive, but also has souped up fae blood. So if Eric drank her blood and supercharged his immunity perhaps he could cure Bill. Or perhaps in some odd way they cancel each other out and Eric "makes" Bill human again. Wouldn't that be weird?
