I do not know what will happen. I can see it either way. What we have in this universe is not typical. If we think that some sort of natural thing that belched from the Earth, we are befuddled by the large number of unburied dead that Saul and Victor found. So, lots and lots of people at ground zero did not seem to turn.

Typically we see a chain of infection distributed by bites. But, there does not appear to be five million biters running around LA.

Cindy turns and has two broken legs. She is not very mobile. Did something wound her, but not eat her? That is different from the dude in the garage. He gets munched, but does not reanimate. Did they bury the guy in the garage? The suicide gate guy? The other one they kill in the tower, but do not describe? If Cindy was not the only one buried, were the others also dug up?

Ink murders Paul. Paul does not reanimate. If Ink is compelled to grow his army, why does he kill rather than turn Paul? However, Ink then knocks nicely on the door instead of kicking it in and going after the other residents of the tower. Does he think he is a vampire and needs an invite into the apartment?