There is no proof vampires are real
There is no scientific proof that vampires exist, but when you think about it, 95% of animal species on this Earth are unknown to humans. There are animals that have been around for many millenia that we are just finding out about now. It is entirely possible that vampires exist and hide from civilzation. I personally think that humans ask WAY to much about planets and their inhabitants, such as aliens and whatnot, and when we find out the answer, we are going to regret it. Whether there are vampires or not, obviously they dont WANT us to know they are real and I think we, for our own safety, leave the question unanswered.