Do you mean the people turning into zombies without being bitten? I think that's a deliberate plot development, not a mistake. They introduced the concept a couple episodes with those two dead cops.

Mutation, I'd think. The bubonic plague went from being to transmitted via flea bite to being airborne, maybe the zombie plague did the same thing.

So then there's two risks... being bitten/scratched, or just breathing? I'm wondering how they're gonna play that. If the plague is airborne, then it has to have affected some of our main characters, and they're all going to die. But if somehow the plague only makes you a zombie after you've died, while it laid dormant in your system until then, then it's really not so consequential in the larger scheme of the show, except that now, if someone dies from anything at all, they need to get re-killed. Not much of a game changer, really, except in the case of someone wanting to die even less, because they know they'd become a zombie.
I dunno.
Well, hopefully they do have somewhere they're going with this. I just can't see how it'd add anything to the show at this point.
I'm just hoping it doesn't turn out to be some crap they did for effect.

Depending on what zombie "lore" you're going by, there doesn't always have to be a bite or scratch. In all of the original "...of the Dead" movies, corpses reanimate no matter what the cause of death was, and there are other examples which I can't recall right now. Usually they explain it as a virus or something like that, and I think even in the original "Night of the Living Dead" they mentioned something about radiation from Venus. It will be interesting though, to see how they will explain it in this story.

Like I just replied to Jans, it wouldn't be a game-changer. If the group realizes that (which should happen, since two folks just reanimated after being killed by other-than-zombie means), then they'd simply head-cap any regular ol' human they tried to kill.
We know that in the larger scope of things, the enemy is the dead, but these are all dead from the very nature of the zombie, which spreads the plague. If the disease is transmitted via bodily fluids PLUS airborne, then either everyone's f*cked, or people just need to do what they've been doing, and try not to die, which was the original agenda anyway.

I'm just wondering what the possible benefit could be to adding an infection method that only takes place after you're already dead. If it's just for the purpose of introducing a different lore, then I don't think that's going to bode well for the show.

Yeah, I noticed your reply after I'd already replied. All these hidden posts are doing my head in!

I don't think it'll be a game changer, as far as the full scope of the story, and I don't know that there is even a point to them going that direction, other than just choosing to go with that version of zombie lore for no good reason. I like it just because NotLD is my fave, but also because it means they will be more aware of the human threat to their lives, not just the zombie one. It also made me wonder about a few past things, such as: Would Hershel's daughter have tried to commit suicide the way she did if she knew she'd come back as a zombie? I should hope not.

I think I see what you mean though, now that I'm re-reading your post. If they just go around popping everyone (living or dead) in the head, it doesn't really make for good action or story all the time.

I'm hoping that what little they learned at the CDC might become relevant later on in the story, and maybe give some insight as to what causes it, or perhaps even a cure.