Drain

Drain, or sometimes known as the Virus, is a virus which kills all of your blood cells over time, after dying you return from the dead. The normal time of reanimation after being bit is up to 7 hours. After bitten, make sure you tighten the bite so the Drain does not go to your blood steam, making your time to about 10 hours.

NOTE: IT DOES NOT TAKE PART IN THE GAME, IT IS A PART OF THE STORYLINE.