Best I can tell you become a zombie when you die. The walker virus is not transmittable by a bite, it is simply inherent to every living human being with air being the vector. The damage from Zombie bites is that they haven’t seen Crest or Ivory Soap in a long time making the bacteria in their mouths virulent. Hence, amputate or die and when you die you Zombie up. At least that is my understanding from watching the show. :-}
And I do like the show. My wife wonders why a good conservative Catholic like myself only watches two shows, Walking Dead and Sons of Anarchy neither of which she deems has any social redeeming quality. I agree with that and love my wife but I like those shows. And I don’t try to figure out why.
Okay, thanks.