You don't fundamentally change, you are still you, even if you are older. It's the same you, you just need to survive in the adult world. You don't gain adult powers, you just have to do adult things.
Madness string 95080
Then there's the question of what to do with your corpse. I mean, sure, burying it is the right thing to do. But the fucking virus can survive in a corpse for years. You could kill every rabid animal on the planet today, and if two years from now, some moist, preserved, rotten hunk of used-to-be brain gets eaten by an animal, it starts all over.