Vampires drink blood to survive, and they live their lives like humans do for the most part.
Because they are not holy they are demons
No.
real AnswerTechnically no because the blood that is drank goes from the mouth, to the stomach, to the gut, to the bladder then out of there scrotum or snatch and it avoids contact with the main blood stream.
A. K. Tolstoi has written: 'O literature i iskusstve' 'Die Familie des Vampirs' 'Stikhotvoreniya Tsar' Fedor Ioannovich' 'Knyaz' serebryanyi' 'The death of Ivan the Terrible' 'Sobranie sochinenii v chetyrekh tomakh' 'Thoughts and aphorisms from the fruits of meditation of Kozma Prutkov'
Vampires DONT SLEEP because their immortal and don't get tired like human being do... they do however return to a resting place during the day - they don't get on too well with sunlight. mythology suggests this is the host bodies grave site, the coffin having some earth from the vampires homeland within.
There are a number of ways vampires attack their victims. They may seduce them into offering themselves up as food. They may be convinced to turn someone. They may leap on them and ravage them like a wild animal. They may mesmerize them, almost hypnotizing them. They may take their victims in their sleep. It really depends on who wrote the story and how they want to portray the character. Vampires being totally fictitious characters.