Comparison of the Common Adhesin Coding Operons Distribution in Uropathogenic and Phylogenetic Group B2 and A Escherichia coli Isolates

Results: Phylogenetic analysis showed that 55 and 17 of 100 UPEC isolates belonged to the B2 and A phylogenetic groups, respectively. The afa, fim, foc, pap and sfa operons were present in five (9.09%), 55 (100%), 16 (29.09%), 46 (83.63%) and 46 (83.63%) of UPEC isolates belonged to phylogenetic group B2, and two (12.50%), 14 (87.50%), one (6.25%), two (12.5%) and 12 (75%) of isolates belonged to phylogenetic group A, respectively. Statistical analysis showed that pap gene was significantly more frequently detected in phylogenetic group B2 (P < 0.05). Conclusions: The UPEC isolates belonging to group B2 harbored a greater number of adhesin coding operons than strains from phylogenetic groups A.