Fig. 2

Survival and macroscopic NE lesions of groups of broiler chickens (n = 20/group) post-CP challenge. A Highlights a mortality rate ranging between 10 to 15% in groups of birds pre-exposed to vIBDV SK09 before the CP challenge (p = 0.0173). Key terms: CP: Clostridium perfringens; P: protein; vIBDV: variant infectious bursal disease virus. B Displays a dilated jejunum with patchy, thin, necrotizing areas (arrow) of the intestinal mucosa through the serosal surface of the intestine. C Depicts severe, diffuse, acute necrosis of the intestinal mucosa in the mucosal surface of the intestine