The Lush Zombie

I realy like the new Lush caves and all the related blocks to it. I also realy like the Spore Blossom and I have a idea what it could do.It would be very cool that if a zombie stays to long in the spores it will turn to a new mob called a Lush Zombie or Spore Zombie or something like that. This zombie would give you poison when he attacks you and could also spawn naturaly in the Lush caves.