Fig. 6From: Preparation and characterization of a single-domain antibody specific for the porcine epidemic diarrhea virus spike proteinImmunocytochemistry analysis of the binding activity of S7 antibody to PEDV in living cells. The Vero cells infected with PEDV were incubated with S7 antibody and subsequently detected with FITC-streptavidin (a), and the uninfected Vero cells were used as a negative control (b). Cell nuclei were stained with DAPI. The merged images showed the localization of PEDV in Vero cells (a), but no fluorescent signal was detected in the PEDV-free Vero cells (b)Back to article page