id author title date pages extension mime words sentences flesch summary cache txt cord-341469-7guojyay Park, Seong-Jun Molecular characterization and phylogenetic analysis of porcine epidemic diarrhea virus (PEDV) field isolates in Korea 2011-01-06 .txt text/plain 3718 165 53 Especially, ORF3 gene analysis can be used for discrimination between vaccine and wild-type PEDVs. Sequence and phylogenetic analysis showed that recent, prevalent Korean PEDV field isolates have close relationships to Chinese field strains and differ genetically from European strains and vaccine strains used in Korea. Sequence analysis of the complete ORF3 genes showed that all PEDVs, including the Korean field isolates, fell into three groups, and group 3 had two subgroups (3-1 and 3-2), as can be seen in the phylogenetic tree (Fig. 2) . Genetic analysis based on complete M and ORF3 genes showed that each PEDV group had several unique characteristics, and these results indicated that specific groups of PEDVs may be differentiated from other PEDVs, including Korean field isolates, by specific nucleotide differences, but more PEDVs need to be analyzed for more accurate analysis. ./cache/cord-341469-7guojyay.txt ./txt/cord-341469-7guojyay.txt