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Distribution of phylogenetic distances between the full-length sequences of the fusion gene of all Human respirovirus 1 (HRV1) strains. Each panel illustrates the histogram of all 66 strains (a), lineage 1 (b), lineage 2 (c), and lineage 3 (d). The y-axis and x-axis indicate the number of sequence pairs and phylogenetic distances, respectively.
