Quote Originally Posted by Witch_Doctor View Post
The cliffhanger that results from this is has me wondering if Mark has been infected with someones else blood. He seems to suspect something when he snaps at the other guys near the end.
Quote Originally Posted by Storm View Post
Maybe the Z that grabbed onto him through the door afterwards...Simon did throatstab it, maybe some blood hit Mark's wound?
He could be the NeXT to die...Or second, if he manages to take someone out first...I think the likelyhood of him turning is decently sized at least...

I think the answer is simple: Chuck just got through stabbing a bunch of Zeds with that spear, then used the same blood-soaked spear tip to stab Mark.

Boom, instant infection.