Fig. 1From: Development of an indirect ELISA, blocking ELISA, fluorescent microsphere immunoassay and fluorescent focus neutralization assay for serologic evaluation of exposure to North American strains of Porcine Epidemic Diarrhea VirusPurification of antibody capture antigen. SDS-PAGE/Coomassie blue staining of E. coli expressed and purified NA PEDV-NP antigen used to coat ELISA microtiter plates and FMIA microspheres. Molecular weight ladder (MW) PEDV-NP (51Â kDa)Back to article page