avian influenza virus subtype h5n1 outbreaks report in poultry

poster design avian influenza virus subtype h5n1 outbreaks report poultry information bird flu update global aiv potential situation update mortality sick chicken chickens broiler layer dead death h5n8 h9n2 h7 h7n3 h7n9 outbreak disease diseases viruses genetics mutation genes protein amino acid base rna 3d structure typography symptoms signs vaccines homologous protection immunity cell farm boiler layer hens egg meat production spread