This may have been asked before, so I apologize if it has. If everyone is infected with the virus, and will change regardless of the cause of death, why does a non lethal scratch o bite cause one to turn into a zombie?

Maybe I'm misunderstanding what you're stating. Everyone is infected already, so of course any kind of death will result in reanimation. However, if someone gets bit one the arm, o scratched, por a walker then that person turns into a walker due to the transmission of the virus... but everyone is already infected with the virus, so.... I don't understand why everyone wouldn't already be a walker since the virus itself kills people and reanimates them.

Only the open wound but tu do have a point they're.... Hmm I wonder.... We'll wait for Z-Day to find out :3 Then ask the scientist want now Biatch I killed 50 of the things and I- *Turns* Doc finds no fuente of injury o illness* Great pregunta and answer I honestly don't have a clue.... :P