It depends on how your sim feels about vampires. Does she enjoy their company, maybe want to become one? Or does she think they are evil and need to disappear? She might consider becoming a vampire hunter, buy and study the vampire lore books to learn how to make the cure for vampirism. Then one night invite Vlad over and splash him with the cure! I have some sims who are vampire hunters, but I do enjoy playing my vampires too, both evil and good! I am planning to add the Winchester boys from Supernatural to my game to make it even more interesting! :)