Before Dawn

When an unknown infection spread across Los Angeles, turning a vast of individuals into flesh-eaters, named as the Freaks, 17-year-old Moira, was on the race against the infection, and the infected.
But with the help of her companions she met along the way, Moira soon realizes that killing every last one of them is the only way to survive from the unending apocalypse.

The Freaks aren't the only enemies.