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Phylogenetic analysis of ORF1 (A), ORF2 (B), and ORF3 (C). These trees were constructed by means of the neighbor-joining method with the Kimura 2-parameter model nucleotide substitution model. The statistical significance was tested using 1000 bootstrapping replicates and values ≥ 80% are shown at the branch nodes. The strains detected in this study are shown in bold with underlining. Asterisks represent the prototypes.
