You open your eyes.
You are lying on the cold, prickly tarmac of a road full of potholes. Your clothes are ripped and dirty, and your head hurts. There's also a vague ache of hunger in your stomach, but you can ignore that for now. It's harder to ignore the two semicircles of messy puncture-marks all across your forehead, and around the back of your skull.
You got bitten by a zombie.
Looks like the ranks of the undead just conscripted another member!