FIG. 1.

UPGMA dendrogram of AFLP fingerprints from 55 chicken C. jejuni strains, 52 strains from patients with gastroenteritis, and 18 strains related to patients with GBS or MFS. The percentage of genetic homology between banding patterns is indicated. Window I represents small groups of identical fingerprints with 90 to 100% homology. Fingerprints in window II share 50 to 90% homology. Window III displays the low levels of homology (<40%) between the two major groups, A and B, encountered among the studied strains. Arrows indicate the AFLP bands specific to group A. Bars indicate clusters with related fingerprints from all sources.