Histopathology of broiler chicken at 9th day p.i infected with H9N2 virus (H&E l 00X). (A) Trachea of broiler chicken shows the infiltration of neutrophils and sloughong off epithelium. (B) Lung of broiler chicken shows the congestion, infiltration of neutrophils and engorgement of protein. (C) Liver of broiler bird show the infiltration of inflammatory cells and inflammation of hepatocytes. (D) Kidney of broiler chicken shows the infiltration of neutrophils and hemorrhages in glomerulus.