Figure 5
From: Antiviral activity of four types of bioflavonoid against dengue virus type-2
Foci size reduction in DENV-infected cell treated with quercetin. Foci forming unit reduction assay (FFURA) was used to evaluate the in vitro anti-dengue virus activity of quercetin after viral adsorption. Foci of the non-treated infected cells (a) compared with foci in cells treated with quercetin (50 μg/ml) postadsorption (b). Arrows indicate foci which are more diffused, less intensely stained and smaller than the foci in non-treated cells.