Fig. 1
From: Detection of p53 mutation and serum monitoring alert caused by Marek’s disease virus in poultry
Histopathological observation of diseased chickens infected with MDV. a Different sizes and shapes of focal infiltration and hyperplasia of lymphoid tumor cells were observed in the liver tissues (HE, 400×). b Diffuse infiltration and proliferation of lymphoid tumor cells between the follicles were observed in the bursa of Fabricius (HE, 400×)