Mareks vaccine on older birds

Discussion in 'Emergencies / Diseases / Injuries and Cures' started by rmyer, Apr 29, 2011.

  1. rmyer

    rmyer Out Of The Brooder

    Jun 22, 2009
    Lancaster County PA
    Hello, I have read varying responses on this topic, but my question is this... if one vaccinates older birds that were carriers, would this protect their offspring (embryos) from inheriting the mareks in all newly laid eggs after a time period?

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