Replying...
Intro. It is the Era of Celestia, Friendship ruled everywhere. But then one fateful day it started. At first a measly little disease pony doctors and experts of the time didn't deem a hazard. Then somepony died... While alarming most ponies didn't see it as such- until the dead rose again. At first the dead were normal ponies, they were confused on why so much time passed, the undead weren't any different from the living... Until the symptoms started, heightened senses, a taste for meat, a taste for PONY meat in particular. Soon they started losing motor control. Their cries of mercy were overshadowed by their violent acts. The infection began spreading wildly, eventually the dying phase was evolved out of the disease, even bite marks would heal up almost immediately making spotting infected impossible. You live in this hellscape, how long will you survive.

My Little Pony; Age of Infected

@Lunar Pitch