Hey all, evidently I have mareks in my young flock and wonder if it would do any good to vaccinate them at three months old. It looks like 4 or 5 of eighteen are affected. I plan to separate these in the morning, hopefully I can save the others. Any guess on whether I can save the rest if I vaccinate now? I know the correct procedure is to vaccinate at 1-2 days old. Anyone have any experience with vaccinating later? Anyone have any suggestions for me at all? Any help would be greatly appreciated.