Soo it's been a couple weeks now since the pandemic and I still have the virus on my avatar, despite I see everyone else no longer has theirs? How can I get rid of this/change it back to normal?

You have to use the beta wardrobe. Select skin and choose 'none'. It'll take your zombie skin off, and you can always reselect it again anytime you want to be a zombie.

Ah thank you!

I forgot to add: If the skin doesn't change immediately after you hit save wait a few minutes. Sometimes the cache is slow.