Hi, I have a question about Marek vaccine. I have chickens and chicks but they have never vaccinated with Marek. Now I am trying to buy 7 chicks from another breeder and all those chicks were Marek Vaccinated. Is it harmful for my chicks and chickens? Should I quarantine these vaccinated chicks for certain period, until my chickens and chicks are safe? If so, how long? So far, I have hatched only eggs, never bought chicks. All my chickens were hatched in my kitchen. Now I worry if Marek vaccinated chicks can affect my chicks and chickens. Please give me your thoughts. Thanks!