Quote Originally Posted by Arthur LaMarche View Post
In Chapter 2 we find single zombies throughout the tower. They may have been exposed and retreated home, but I believe there is an airborne means of transmition in addition to the classic blood-based. This is not a classic reanimator. The zombies are alive and thus the double entendre of the title.

I do not think there is any way for a blood-based pathogen to purge greater than >99.99% of LA. Second, although a few thousand zombies coming to eat you is horrific, LA should produce millions and we just do not see that. Most people just Die.
I was thinking something along these lines re-listening to Season 1 recently. Most of the people in the Tower before it all started were out at work/school/errands/whatever but some folks were at home, I'm sure. So either, there was some initial thing that happened that caused spontaneous "turning" of people throughout LA (probably not given the heat map Micahel & Co produced to ID Ground Zero) or some outside Zeds came into the Tower (for food, etc) and killed/turned the population that were there.

That doesn't disprove an airborne vector but it probably restricts it.

And as to the number of Zeds vs the number of dead, I'm not sure we have any info on why someone gets turned instead of getting eaten in the course of Zed vs human interaction.