You're assuming the zombies are walking dead in the traditional sense. I think more realistically, it will be a viral infection causing increased aggression combined with a loss of the higher reasoning/logic functions of the brain.
Hmm, never thought of it that way.... But at least that is more feasible, and if the virus is transmitted through blood... then the biting could be the transfer.
Scary that they are really looking into it... (yes this is a real person, real company but they dont list this department)
2010 Black WK, Tint and Only 1.5" spidertrax spacer so far waiting on the OME HD lift