Fig. 5From: Alpha-sitosterol: a new antiviral agent produced by Streptomyces misakiensis and its potential activity against Newcastle disease virusRepresentative photomicrograph of H&E-stained sections of ECE CAM. a: Normal chorioallantoic epithelium (arrowhead) and connective tissue layer (star) in α-sitosterol group. b, c: Extensive hemorrhages (curved arrow), congested vasculatures (star), and some inflammatory cells within the stroma layer. Additionally, hyperplastic vacuolated epithelium (arrow) with intracytoplasmic inclusions (arrowhead) within the epithelial layer in the control positive group (scale bar 100, 20 μm). C: Edema and inflammatory cells infiltrate (star) with a moderately thickened chorioallantoic membrane in the treated group (scale bar 100 μm)Back to article page