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Maximum likelihood phylogenetic trees constructed from the nucleotide sequences of the Rwandan G9 strains for the VP7 genome. Using 1000 bootstrap replicates, the branch support was thoroughly evaluated. All G9P[8] study strains clustered into lineage III. The pre-vaccination study strains are indicated by a black circular shape, the post-vaccination study strains are indicated by a triangular shape, and the vaccine strains are indicated by a square shape.
