Figure 1  In vitro characterization of the recombinant iPEDVPT-P5, iPEDVPT-P5-96S, iPEDVPT-P96-5S and iPEDVPT-P96 viruses. (A) Representative immunofluorescence micrographs of porcine epidemic diarrhea virus (PEDV) syncytia in Vero cells stained with anti-PEDV spike antibody at 18 h post-infection (HPI).