I just called the local feed store where my Silver Wyandotte's will be delivered on April 24th. They told me the hatchery, Privett does NOT vaccinate the chicks for Marek's disease and coccidiosis. I can purchase the medicated feed for the latter, but what about the risks of Marek's disease. They will be in a brand new coop and run. The closest chickens to my flock will be a small confined flock of my neighbor's across the woods. Thoughts from you experienced chicken moms and dads on this? I am a typical nervous expecting mother hen as you might tell. I do want to manage my chickens organically after the first 8 weeks.