Yay. I started my 4e EtRL the weekend after OG came out. Just finished the zombie incursion in the village of Barovia last weekend. Good timing, lol. I just made my own plague based loosely on Mummy Rot.
Edit: looking at it, that's exacty how I did it, lol.
I am actually thinking about using the Zombie Plague disease as a precurser to the Ebon plague in my campaign Fun times ahead, atleast from my side of the screen anyway.