Fig. 1From: Development of an indirect ELISA to detect PEDV specific IgA antibody based on a PEDV epidemic strainPurification of the whole-virus PEDV antigen. A The observation of purified PEDV particles by TEM, scale bar: 0.2 μm; B The detection of PEDV structural proteins by SDS-PAGE analysis, including N and M proteins (Black arrows). The ultracentrifuge products from PBS-adsorbed Vero cells were as the controlBack to article page