Ok, I'm pretty sure that we have two cases of Marek's disease in our pen of 8 week bantams. And they were vaccinated! Anyhow, I am very concerned about our flock of laying hens that I'm pretty sure have not been vaccinated. The bantams have not been housed with the hens, but they have been close by. Besides the obvious percautions like taking care of the bantams last, washing hands, sterilizing buckets and equipment, etc, is there anything else we can do to avoid an epidemic? Anything we can give the hens to boost their immune systems? Thanks for any help!