Fig. 2

Phylogenetic tree of helicobacter cinaedi. Neighbor-joining tree showing the position within the species of the genus Helicobacter, based on 16S rRNA gene sequence. The numbers at the branching points are bootstrap values. Campylobacter fetus subsp. fetus was used as the out group. The numbers in parentheses are the accession numbers of the gene sequences. Arrows indicate the position of strains from the abscess or blood source in this case