Figure 3From: Identification and assessment of virulence of a natural reassortant of infectious bursal disease virusDifferences in the severity of bursa of Fabricius macroscopic lesions in examined groups. A Normal group, B positive classic IBDV (D78) control group, C very virulent (75/11) control group at 3 dpi, D same group at 10 dpi, E Reassortant (Bpop/03) group at 3 dpi, and F same group at 10 dpi. The magnification is represented by the black band (×50).Back to article page