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Phylogenetic analysis of PEDV based on nucleotide sequences of the S gene. The phylogenetic tree was constructed with MEGA-X v.10.1.8 software using the neighbor-joining method. Bootstrap analysis was set in 1000 replicates, with a value > 70%, to assess the significance of the tree topology. The information on reference strains is provided in Table 2. “●” indicates the strains detected in this study.
