Table II. Siderophore uptake systems in E. coli isolated from UTI patients related to drug resistance, rUTI, and the presence of genes for virulence factors type 1 fimbriae, hemolysin, and P fimbriae.
| Siderophorea | ARb | rUTIc | Type 1 Fimbriaed | Hemolysine | P Fimbriaef |
|---|---|---|---|---|---|
| 0 | 45 (5/11) | 27 (3/11) | 100 (11/11) | 0 (0/11) | 0 (0/11) |
| +1 | 23 (5/22) | 32 (7/22) | 95 (21/22) | 18 (4/22) | 23 (5/17) |
| +2 | 41 (17/38) | 42 (16/38) | 100 (38/38) | 45 (17/38) | 32 (12/38) |
| +3 | 43 (6/14) | 50 (7/14) | 100 (14/14) | 50 (7/14) | 14 (2/14) |
a
Denotes number of alternative siderophores expressed as determined by PCR because all strains are presumed to have enterobactin.
b
Denotes antbiotic resistance of one or more of ciprofloxacin, augmentin (amoxicillin/clavulanic acid), or amoxicillin shown as percentage of strains (frequency in parentheses).
c
Denotes rUTI as percentage of strains (frequency in parentheses).
d
Denotes percentage of strains that express type 1 fimbriae (frequency in parentheses).
e
Denotes percentage of strains that express hemolysin (frequency in parentheses).
f
Denotes percentage of strains that express P fimbriae (frequency in parentheses).