From a different angle: a search for the source of Z-ism

[Duffusmonkey]

My theory on low number of Zombies is that the Generation 1 zombies are from exposure to ground zero. The gen1 zombies are mindless killing machines that killed most humans they met. A very small number of humans exposed to zombies survived long enough to be changed. I call these generation 2 zombies. At first zombies ran wild but when Ink gained control he encouraged the zombies to eat the dead and focus on making more Gen 2 zombies.

To summarize the zombies were focused on killing until live humans became scarse forcing the zombies to get organized,

BUT Why were gen1 zombies scarred?

I aLso have type O~ blood so your theory makes me nervous