Quote Originally Posted by LiamKerrington View Post
As what Gooer says; also the complete show reveals that a certain constitution of a person might be helpful as well. Pegs and Victor, each of them had a good share of the gases, but they did not turn; I guess it is not too far fetched to assume that to a certain degree their bodies can fend off the zombie-agent very well.
My theory is that as long as you don't choke to death in the gas and escape, you'd be fine. CJ's side of the tower, first noted that their convoys found the zone was harder to breathe. I suppose couple of their guys were exposed to it as well. (correct me if I'm wrong... its been so long.)

And when the gasses came up, I guess that majority of the people choked to death and came back alive, it was probably heavier too when the gasses broke out.