I am glad to be able to help even if it is just by telling you my experience. I felt so devastated when I found out I had the virus in my flock, but after reading all I could about this decease, I knew that there was not anything I could have done to prevent it. The virus is in the air and it travels for miles, many chicken owners have it in their flock even though they don't know it. I read somewhere that if you have chickens you have Mareks because unfortunately it is very common.Hey aldarita I meant to reply to your post, but I accidentally did a general reply. Thank you for sharing your story with me.
My next door neighbor has chickens (actually she is the one who started me with this hobby), her flock is very small (only 7) and she has not lost any to Mareks. I told her about my pullet that died with it so she is aware of the virus being around. Don't feel bad about your neighbors, if you have your chickens as a hobby and for the eggs like I do, it should not be a concern, if you are planning to raise them and sell fertilized eggs or chicks, then it is when it becomes unethical. Don't blame yourself, there is a big chance that your chicks got the virus from the air. Next time you get chicks, have them vaccinate, it will give them a better chance but don't forget, they can still get it, if they do, hopefully it won't be a nasty one. You know, I love to spend time with my flock and I am constantly wondering if one of them is going to come up with this ugly decease but then I make certain that I can give them the best life and keep them happy while they are with me.