Morphological plaque characteristics of cloned parent DENV.

aNumber of DENV plaques visible by neutral red staining on 6-well plates of Vero cells. bAD – Average diameter of plaques in millimeters (mm). cNumber of DENV plaques, in addition to the number of visible by neutral red plaques present in the same well, after development of IHC. dPercent of plaques visible, per well.