Table 5.
Comparison of virulence factors, pathogenicity islands and resistance profile between two clonal groups.
| Genetic determinants | Clonal group 1 (n = 15) | Clonal group 2 (n = 8) | Total | p-value | |
|---|---|---|---|---|---|
| VIRULENCE FACTOR, n (%) | |||||
| Type 1 fimbrial adhesin | fimH | 13 (61.9) | 8 (38.1) | 21 (91.3) | - |
| Outer membrane lipoprotein | traT | 11 (61.1) | 7 (38.9) | 18 (78.3) | - |
| Yersiniabactin siderophore receptor | fyuA | 12 (70.6) | 5 (29.4) | 17 (73.9) | - |
| Aerobactin siderophore receptor | iutA | 8 (57.1) | 6 (42.9) | 14 (60.9) | - |
| Group capsular II | kpsMT II | 5 (50.0) | 5 (50.0) | 10 (43.5) | - |
| Salmochelin siderophore receptor | iroN | 6 (60.0) | 4 (40.0) | 10 (43.5) | - |
| P fimbriae C | papC | 5 (55.6) | 4 (44.4) | 9 (39.1) | - |
| S fimbriae (A) | sfaA | 5 (55.6) | 4 (44.4) | 9 (39.1) | - |
| Colicin C | cvaC | 5 (62.5) | 3 (37.5) | 8 (34.8) | - |
| Outer membrane protease | ompT | 4 (66.7) | 2 (33.3) | 6 (26.1) | - |
| Haemolysin F | hlyF | 4 (66.7) | 2 (33.3) | 6 (26.1) | - |
| Increased serum survival | iss | 4 (66.7) | 2 (33.3) | 6 (26.1) | - |
| K5 capsule | kpsMT K5 | 1 (20.0) | 4 (80.0) | 5 (21.7) | 0.016 |
| Haemolysin A | hlyA | 1 (25.0) | 3 (75.0) | 4 (17.4) | - |
| Cytotoxic necrotizing factor 1 | cnf1 | 1 (25.0) | 3 (75.0) | 4 (17.4) | - |
| Adhesin Afa | afa | 1 (50.0) | 1 (50.0) | 2 (8.7) | - |
| S fimbriae (S) | sfaS | 1 (50.0) | 1 (50.0) | 2 (8.7) | - |
| K1 capsule | kpsMT K1 | 1 (100.0) | - | 1 (4.3) | - |
| Group capsular III | kpsMT III | 1 (100.0) | - | - | |
| Invasion of brain endothelium | Ibe10 | - | - | - | - |
| Cytotoxic necrotizing factor 2 | cnf2 | - | - | - | - |
| P fimbriae (G) | papG | - | - | - | - |
| PATHOGENICTY ISLANDS, n (%) | |||||
| PAI IV536 | 14 (73.7) | 5 (26.3) | 19 (82.6) | - | |
| PAI ICFT073 | 8 (68.7) | 5 (31.3) | 13 (56.5) | - | |
| PAI IICFT073 | 4 (57.1) | 3 (42.9) | 7 (30.4) | - | |
| PAI I536 | 1 (25.0) | 3 (75.0) | 4 (17.4) | - | |
| PAI IIJ96 | 1 (33.3) | 2 (66.7) | 3 (13.0) | - | |
| PAI II536 | 1 (50.0) | 1 (50.0) | 2 (8.7) | - | |
| PAI III536 | 1 (100.0) | - | 1 (4.3) | - | |
| PAI IJ96 | - | - | - | - | |
| RESISTANCE PROFILE, n (%) | |||||
| ESBL | - | 4 (100.0) | 4 (17.4) | 0.003 | |
| CTX-M-1 | - | 4 (100.0) | 4 (17.4) | 0.003 | |
| CTX-M-15 | - | 3 (100.0) | 3 (13.0) | 0.006 | |
| CTX-M-9 | - | 1 (100.0) | 1 (4.3) | - | |
| CTX-M-25 | - | 1 (100.0) | 1 (4.3) | - | |
| KPC | - | 1 (100.0) | 1 (4.3) | - | |
Chi-square Tess. Data expressed as absolute number (%).