Quote Originally Posted by Zombie-Bane View Post
How come Victor or any of the other people who breathed gas at some point didn't turn?
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.