Instead of THE GUBBMINT being evil by LOCKING EVERYTHING DOWN in some scary QUARANTINE ZONE or the like, imagine a “got to build up zombie bite immunity” response, or one with pseudoscientific treatments, or pretty much anything so can feel like things are back to normal while zombies are just a thing that continues happening.
Add your own ideas if you like.
I stopped paying attention to zombie slop many years ago because of the sheer chuddery of the fandom and the tiresome edgy gimmicks of it all, so yeah maybe, I dunno.