Avian Influenza(9) chicken(8) H9N2(5) Avian influenza virus(5) H5N8(4) pathogenicity(3) Egypt(3) influenza A virus(3) newcastle disease virus(2) Immunity(2) ELISA(2) synergism. zoonosis.(2) host defense peptides (HDPs)(2) H5N1 avian influenza virus(2) cleaning(2) H5N1(2) Pinus densiflora(2) Trachea(2) mRNA expression(2) Curcuma longa(2) immune response(2) Disinfection(2) Mycoplasma synoviae(2) Vaccine(2) high pathogenic avian influenza(2) GALLINACIN (GAL)(2) Transport(2) Broiler(2) duck(2) Angelica dahurica(2)