I had a chicken who recently died of what I'm pretty sure was Marek's (see https://www.backyardchickens.com/t/932567/my-silkie-is-dying-whats-wrong-with-her-please-reply for more about what happened) I am going to get new chicks and I'd like to keep them from dying from Marek's. I've heard some things that I'm not sure are true and want more information on how to keep my new chicks safe. Here is the only things I know about it; 1. If chicks are vaccinated in the first day of their life and quarantined for three weeks they cannot die of Marek's. 2. A hen over one year old cannot die of Marek's 3. Marek's blinds the chicken in one eye. 4. Can paralyze chicken or just make them weak on one side. 5. It can last in a coop for up to seven years. 6. It's airborne. And that's really all I know so I would appreciate more info so my new little peepers don't go belly up.