Pitty that they use vampire on the cover of the box and in the promotion since they never use it in the shows. It is Code V Virus - V as in 5 or V as in Vampire.
Ultraviolet is the supreme production of the Vampire genere, for the thinking man. There is plenty of suspence, great character build up and plot. It starts with a man being led into a world he didn't know was there, recruited by an agency fighting their Code V menance with state of the art means. No silly Van Helsing gadgets but cleverly worked ideas based on the Vampire myth.