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Phylogenetic tree inferred using the MEGA X maximum likelihood method (Tamura 3-parameter model) and the Interactive Tree of Life (iTOL) based on 41 nucleotide PCV-2 sequences, including J315 sequence obtained in this study (PCV-2d, plus its accession number, is in bold and shaded in red) and 40 strains of different genotypes obtained from GenBank (PCV-2a to PCV-2h) (no bold or shading and identified with the accession number and country of origin).
