Hi all! I should have my first batch of chicks hatching out in a few days, and I was wondering if I should vaccinate them against Marek's. I have never had any issues with Marek's on my property, but I also only have one other chicken that I'm absolutely positive has not been vaccinated. I'd be able to get the vaccine, and if I watched a few videos then I think I could administer it to them, but is it worth it?