Figure 2From: Evaluation of multicomponent recombinant vaccines against Actinobacillus pleuropneumoniae in miceHistopathology of lungs from mice in various groups after challenge with APP1 or APP2 (HE staining 200 × magnification). 2a: Control group challenged with APP1; 2b: Group I challenged with APP1; 2c: Group II challenged with APP1; 2d: Group III challenged with APP1; 2e: Control group challenged with APP2; 2f: Group I challenged with APP 2; 2g: Group II challenged with APP2; 2h: Group III challenged with APP2.Back to article page