No, they're not Dracula types who sink their fangs into your throat and drain your lifeblood; they're those very unpleasant people who are a constant drain on your energy. You know the types I mean -- they can't seem to do anything for themselves and are forever looking for family, friends, colleagues, or the government, to do things for them. Their classification in the annals of psychology is PITA and, as everybody knows, that's the acronym for Pain In The Butt.
And, before somebody else brings it up, there really are vampire bats -- but they're not the horrors of the fiction writers.
Other than as Didge says ... Not really.
There ARE people who are allergic to the sun, but not to the point it turns them to ash.
There are also people who drink blood ... Usually for religious or cultural reasons, and usually the blood of animals ... But there are those rare instances of cannibalistic tendencies.
However, even if you found someone with those two traits ... The person wouldn't be a vampire, as they would have no "supernatural" powers.
This is an odd one. To say the least!
Vampires walk among us. But these people aren’t the stuff of nightmares – far from it actually. Just sit down for a drink with one of them and ask for yourself. That’s if you can find one. They aren’t necessarily looking to be found. “Real vampires” is the collective term by which these people are known. They’re not “real” in the sense that they turn into bats and live forever but many do sport fangs and just as many live a primarily nocturnal existence. These are just some of the cultural markers real vampires adopt to express a shared (and, according to them, biological) essence – they need blood (human or animal) or psychic energy from donors in order to feel healthy.