Table 3.
Prevalence of virulence factors, islands of pathogenicity of 48 blood Escherichia coli isolates, 2015–2018.
| Virulence factors | Gene | n (%) |
|---|---|---|
| Type 1 fimbrial adhesin | fimH | 46 (95.8) |
| Outer membrane lipoprotein | traT | 37 (77.1) |
| Yersiniabactin siderophore receptor | fyuA | 34 (70.8) |
| Aerobactin siderophore receptor | iutA | 31 (64.3) |
| Group capsular II | kpsMT II | 22 (45.8) |
| Salmochelin siderophore receptor | iroN | 18 (37.5) |
| P fimbriae C | papC | 17 (35.4) |
| Colicin C | cvaC | 15 (31.3) |
| Outer membrane protease | ompT | 10 (20.8) |
| K5 capsule | kpsMT K5 | 10 (20.8) |
| Haemolysin F | hlyF | 10 (20.8) |
| Increased serum survival | iss | 10 (20.8) |
| Haemolysin A | hlyA | 7 (14.6) |
| Cytotoxic necrotizing factor 1 | cnf1 | 6 (12.5) |
| Adhesin Afa | afa | 5 (10.4) |
| K1 capsule | kpsMT K1 | 4 (8.3) |
| S fimbriae (S) | sfaS | 3 (6.3) |
| S fimbriae (A) | sfaA | 2 (4.2) |
| Invasion of brain endothelium | ibeA | 2 (4.2) |
| Group capsular III | kpsMT III | 1 (2.1) |
| Cytotoxic necrotizing factor 2 | cnf2 | - |
| P fimbriae (G) | papG | - |
| PATHOGENICITY ISLANDS | ||
| PAI IV536 | 37 (77.1) | |
| PAI ICFT073 | 25 (52.1) | |
| PAI IICFT073 | 13 (27.1) | |
| PAI I536 | 6 (12.5) | |
| PAI IIJ96 | 5 (10.4) | |
| PAI II536 | 3 (6.3) | |
| PAI III536 | 2 (4.2) | |
| PAI IJ96 | - | |
| PAI IJ96 | ||