FIG. 3.

Neighbor-joining tree of B. bacilliformis isolates based on IRS-PCR data. Numbers at nodes reflect bootstrap values after 1,000 resampling events (1:10). Ruler across top reflects percent similarity among fragment patterns. Isolate designations correspond to those listed in Table 1. Allelic designations of nucleotide sequences from the flagellin and gltA alleles are mapped onto the IRS-PCR tree. Symptomatology (s/as) refers to the symptoms (s) or lack thereof (a) of the patient from whom the isolate was obtained.