Phylogenetic analysis of the identified PEDV strains on the basis of <i>ORF3</i> gene sequences.

<p><i>Note</i>. The classical PEDV strain CV777, North American (NA) prototype strain USA/Colorado/2013 (non S-INDEL), US S-INDEL strain OH851, Chinese early PEDV strains (CH/S), Chinese PEDV field strains (2006–2015), and other countries PEDV field strains were choose for genotyping and phylogenetic analysis of the 41 <i>ORF3</i> genes identified in our study. Light purple dot represents PEDV strains identified in North China; red dot represents PEDV strains identified in East China; pink dot represents PEDV strains identified in Northeast China; grey dot represents PEDV strains identified in Northwest China; green dot represents PEDV strains identified in South China; yellow dot represents PEDV strains identified in Central China; blue green dot represents PEDV strains identified in Southwest China.