Hello. I'm Kathy and my family just got chickens this year. We started with eight Rhode Island Red pullets about six months ago. Since then, we have lost half of them to what appears to be some form of disease. A lady from the local feed store said it was Marek's disease. So far, the remaining two roosters and two hens are okay. It was distressing to see them go one by one, especially the one that my kids liked.