You said before that if an infected monster goes to another universe they will be cleansed of the hunger, so I'm guessing the way it works is:
If they just boop to another universe the hunger doesn't spread and eventually dies off (not the monster).
If a hole between worlds is ripped open it will leak through.
You got it, bub… though even with the Hunger gone, the monster will be a wreck. All that damage, LV, and the monstrosity of what they had to resort to for survival won’t just go away. They’ll either have to learn how to live with it… or not.