Decided to participate in this pony-virus trend and here's my version

In this universe, the cause of the pony virus was Twilight, who conducted an unsuccessful experiment where she created a virus that infects all living things and turns them into mutant zombies. All princesses except Cadence are infected/dead

I present to you - Fluttershy

Headcanons:

Fluttershy and Discord, after the outbreak of the pony virus, are busy helping the wounded and helping the ponies get to safe places.

Fluttershy has a bag of medicine around her neck. The wing and leg are damaged. Discord carries her on his shoulders most of time. She cut off her hair so that it would not interfere with her medical assistance and attempts to fight off the infected. Angel was infected, but she couldn't let him go, so Discord built a cage for him and carries the bunny around with them.