Fig. 2From: Variability analysis and inter-genotype comparison of human respiratory syncytial virus small hydrophobic genePhylogenetic analysis based on SHseg. The tree was generated using the Maximum Likelihood method, General Time Reversible model. The numbers are bootstrap values determined for 1000 iterations; the tree was condensed using a cut-off value of 70%. Strain genotypes (determined by phylogenetic analysis based on HVR2) are shown next to strain names. Blue background indicates group B strainsBack to article page