SamwiseTheAwesome got to thinking about these Undead- they're not zombies. They bite or claw you hard enough to draw blood(assuming that they don't do enough damage to kill you outright) they have a mouthful of Staph, MRSA and diseases no one has seen for almost 2000 years... There's a good chance(though not a guaranteed death sentence, can fight it sometimes, but will leave behind a web of keloids that follow the blood vessels the blood poisoning seeped into) they'll get you anyway, just slower...