Around the first season (I believe), we found out that the virus was airborne and whoever died would turn, even if not bit. Prior to knowing that, the characters checked walkers for bites and scratches and always said and thought that the virus was only transmittable through bites and scratches. What I want to know is: Is the virus actually transmittable via scratch? The way I see it, the scratch transmission theory was just an excuse for the people who turned without being bit. The scratches theory is never again brought up after Rick reveals that the virus is airborne.
Edited by _Ghost_, 20 May 2016 - 11:29 PM.