Fig. 1. Dendrogram of the ribotype patterns of 28 Enterococcus faecalis isolates from human and chicken in Athens, GA. The dendrogram was derived from the combined ribotype pattern of each isolate (EcoRI on the top and PvuII on the bottom). The similarity index is given on the top scale. Based on the variability of the intergel control, Ent. faecalis American Type Culture Collection (ATCC) no. 19433, the cutoff was 90% (dashed vertical line).