Traditional medicine fails. Antiviral drugs do nothing. Antibiotics are useless. Quarantines are breached. Governments collapse.
" Ore no Wakuchin dake ga Zombie Shita Sekai wo Sukueru " (Only My Vaccine Can Save the Zombie World) is a niche survival manga/light novel known for its "adult-oriented" twist on the apocalypse genre . In this story, the protagonist discovers that the only way to "cure" zombies and return them to their human form is through a specific "vaccine" that requires physical intimacy.
Think "Mad Max" meets "The Last of Us," but the cure is walking around in human form.