Fig. 2.

Phylogenetic tree of HRSV-B, constructed with a partial G-protein gene (ranging from nucleotide coding sequence 637–897 of reference strain CH10b, Genbank AF065250), comparing 17 HRSV worldwide sequences and 1 Paraguayan isolate. Genotypes GB1–GB4, SAB1–SAB3, and BA1–BA10 are grouped and indicated in parentheses. Each sequence is indicated with its corresponding name and GenBank accession number. Paraguayan isolate is labeled according to year of isolation: 2010 (■). Bootstrap values greater than 70% are shown at branch nodes. Branch distance is indicated by a scale bar at the bottom of the tree.