Fig. 3From: Interaction between avian influenza subtype H9N2 and Newcastle disease virus vaccine strain (LaSota) in chickensa Thymus of bird in G1 showed severe loss of cortical basophilic thymocytes H&E, X 100; b Thymus of birds in G4 showed a marked decrease of cortical thymocytes (arrow), H&E, X 200; c Thymus of control chicken G6 revealed normal cortex and medulla with marked distinction between each. H&E, X 200Back to article page