My cockerel Galil went in for a necropsy this past Wednesday and the preliminary report found lymphoma lumps in several areas likely caused by Marek's. Granted it is an educated guess, but with it being so prevalent the odds favor it being Marek's or at least similar like avian leukosis. Moving forward, I have 30 birds still between the ages of 8 months to 5 years. I have lost 5 birds since last year, 4 now having died in similar fashion. How much more of my flock am I looking at losing? I read the massive Marek's FAQ on this forum, it helps show Marek's is not neccessarily a death sentence, but what can I do now moving forward for my current and future birds??