I have done much reading about Marek's disease and think I understand the basics of it, but have one nagging question that has not been answered regardless of how much reading or searching I do. My dogs are fed RAW store-bought chicken. Just recently it occurred to me that the dogs may have contaminated my yard with Marek's virus with their feces. Am I just being paranoid, or is this a possibility? I have never owned chickens before, but have some chicks arriving in January that have not been vaccinated.