They are all already "infected", just not dead yet, dead men walking.
They offed Rick's wife; why not Glen or his girl?
Right, they haven't really explained that one. But what I meant was if you get zombie goo in a cut, or presumably in your mouth, eyes, or any other mucus membrane, you should technically turn into a zombie right then. I'm also speaking of continuity; early on, they seemed more interested in protecting themselves.
Like I said, IMHO, the writers have put way too much effort into developing those characters to kill them. And, might they not loose veiwership if the kill too many beloved characters?
And, does anyone know if the setup to this show has been covered? Like what/who were these people when the SHTF? How did they come together? How did everything start? Really, we only know Rick's story......