She shakes her head. "A half-breed are those bitten by a pureblood. The day after they are ... infected, they turn into a great monstrous creature, twice the size of a man and twice as strong. Wolf-like, thus the name Lycan, but still retain the intelligence of their human selves." She shakes her head, slowly, bitterly. "They are a plague on men. They feast on them, sometimes not even in the form of a wolf. I am surprised you do not know of them?"

She shrugs, perhaps America had these... walkers instead. It was possible.