Gross lesions and pathologic changes of goslings infected with GoAstV-1 strain JXGZ. Macroscopic lesions of visceral organs (A, a), kidneys(B, b), articular cavity(C, c) from the infected gosling (A, B, C), and uninfected (a, b, c) at 5 dpi. The tissues from the goslings incubated with JXGZ or PBS were collected at 5 DPI and were stained with hematoxylin and eosin. Severe cell necrosis with inflammatory cell infiltration in the GoAstV-1 infected goslings' spleen, liver, and kidney, is presented.