"Vaccine opponents' blood can be very dangerous," the doctor tells the vampire father and daughter in the clip.
From Haitian slaves to rare blood disorders and hallucinogenic plants, the mythologies of zombies, witches, vampires and werewolves are surprisingly complex.
The flying mammals can survive on a meal that almost no other mammal can.
Benzi Gopstein faces prosecution over an article he wrote last December.
This Halloween, act like a vampire bat…and groom somebody.
You'll probably want to steer clear of these seven blood-sucking creatures.
41% of the British eurosceptic party's supporters said they believed that 'a house could be haunted', while Labour supporters were more likely to believe in vampires