Phylogenetic analysis of nucleotide sequence of (A) VP1, (B) VP2, (C), VP3, (D) VP4, (E) VP6 and (F) VP7 genes of G1P[8] RVA samples collected in Brazil and described in this study. Filled circles indicate samples from non-vaccinated children and filled triangles vaccinated children. The Rotarix vaccine strain is indicated by a filled diamond. Bootstrap values above 70%, estimated with 2,000 pseudoreplicate datasets, are indicated at each node. Only the genotype in which the strains under investigation cluster is shown completely and one prototype from another genotype has been added as outgroup. Scale bars represent 0.5 substitutions per nucleotide site.