They are not resurrected to become a full demon as vampires are.

She was a full demon and about to become one of the Sons of Darkness.

And Viper and Dante are full demon.

Isabelle had become a full demon.

You're not a full demon, Isabelle.

The babe of sin will have been born and waxed to a full demon, and I shall yield myself up to his embraces!

Gone was the genteel businesswoman outfit she normally donned; this time she was a full demon: cloven hooves, razor-sharp teeth, and burning eyes.

"The south docks are in a full demon panic," the wind said quickly.