Quote Originally Posted by Grognaurd View Post
Well, let's say 1/3 have some immunity or resistance. They still have to run away from the other 2/3s. Whatever the turning is, it has low penetrance. There are no where near 5,000,000 million biters running around LA, unless they all ran somewhere to hide and started digging to get out of sight.

I toss out the toxoplasmosis as an example in real life that infects human and affects behavior. We still have a really small sample size. Three people choke, two do not. The two that do not have genetics, exposure to a recently turned and being a vet. I put Saul in the vet, because I got the feeling He spent a lot of time there.
That's a good point! It would help to explain why some people were turned and others were just used for food. Perhaps the disease/antibiotics/immunizations/etc. made people less likely to turn and those were the ones that the zombies just ate. Somewhere in the beginning of the series (I'll have to go dig it out) one of the characters asks about this very thing. How do they decide who to turn and who to eat?

Perhaps the type of immunizations (I'm just going to go with that one for now) also affected how quickly people turned. Maybe those that were the slow turners had lower levels of the antibodies in their systems to start with.

I know this still doesn't explain how things started but perhaps it does fill in one of the big gaps in how we've seen the zombies treat people.