Surviving the apocalypse

Louella Evans was just an average teenage girl just trying to survive high school. A mysterious disease turns the majority of the population into zombies. Why is she still alive? The zombies can't sense her. She can walk through a crowd of them and they'll part like the Red Sea did for Moses. She is all alone trying to figure out what the hell is going on. Two years later and she runs into a camp for survivors. Turns out she is the only known girl left. Lou doesn't trust these guys and they don't trust her. But they won't let her leave. They say she needs their protection, but if only they knew of her secret.