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(A) Neighbor-joining phylogenetic tree representing 83 RSV-B whole-genome sequences from GenBank. Multiple sequence alignment was performed using Clustal X2, and the phylogenetic tree was rendered by MEGA X. (B) Close-up view of subtree showing closely related sequences with source country and year of specimen collection. Scale: 0.001 substitutions per nucleotide. The RSV-B whole-genome sequence identified in this study is identified by the filled-in black circle.
