Figure 2: Histopathological scoring of lungs according to the severity of inflammation under low 4x and high magnifications 100x. (a) Score I with normal histology (negative control). (b) Score IV with severe inflammation to necrosis (positive control). (c) Score II with mild focal inflammation (extract treatment). (d) Score III with moderate to severe focal inflammation (comparative control). Arrows indicate the magnified areas of pathology scoring. Tissue sections stained with H&E stain.