Getreal, I'm so sorry to hear about your bird.
I'll keep my fingers crossed for you that it's something different. If it is Marek's though, I hope it doesn't interfere with your being able to enjoy your birds. Many birds can still live very long and productive lives even if infected. It just means that you have to close your flock, and if you add new birds it would be best if they were vaccinated as that would reduce their chances of dying or becoming seriously debilitated.
