Newcastle disease virus (NDV) recombinant expressing the hemagglutinin of H7N9 avian influenza virus protects chickens against NDV and highly pathogenic avian influenza A (H7N9) virus challenges
Keywords: واکسن برداری; Newcastle disease virus; Hemagglutinin; H7N9 avian influenza virus; Highly pathogenic H7N9 virus; Vector vaccine;