Many humans have been accused of being vampires over the centuries due to the fact that their physical characteristics resembled the traits of these blood-sucking monsters.

However, modern science has since shed some light on the vampire myth, highlighting three medical conditions that may well explain why some unfortunate souls were mistaken for these dark creatures of the night.

It is also worth mentioning the theories about some strange retrovirus that may alter the genetic pool (DNA) of normal humans so that they transform into blood-sucking monsters.

Such theories have no scientific base and the famous K17 or V5 have been invented to fuel stories and movies about vampires ( “Ultra Violet" and "Reign In Darkness" : both movies are works of fiction). The only “vampire” virus that we know and suffer from is money.