Figure 3.

Phylogenetic tree constructed using the nucleotide sequences of the flagellin b gene in Leptospira. Nucleotide sequences of pathogenic, intermediate pathogenic, and recently reported new (open circle) strains were extracted from GenBank; our strains (closed circle) clustered with either pathogenic and intermediate pathogenic strains of Leptospira. Please note that generally the pathogenic potential of the newly reported Leptospira is unknown. Strains names are followed by GenBank accession numbers. The strains analyzed in this study are denoted by filled circles. The numbers adjacent to the nodes represent the bootstrap values, and values < 70% were omitted from this tree. The scale bar at the bottom indicates the genetic distance expressed as nucleotide substitutions per site.