TABLE 2 .
Prevalence of virulence-associated genes among E. coli isolates from different clinical settings
| Isolate type | % of isolates with genea |
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adhesins |
Toxins |
Outer membrane iron receptors |
|||||||||||||
| fimA | papA | hlyA | cnf1 | tosA | sat | pic | tsh | chuA | hma | iutA | iroN | fyuA | iha | ireA | |
| Fecal | 98.9 | 26.4 | 13.2 | 7.7 | 11.0 | 19.8 | 12.1 | 20.9 | 39.6 | 26.4 | 31.9 | 20.9 | 47.3 | 31.9 | 14.3 |
| CHb | 97.6 | 51.2 | 19.5 | 4.9 | 19.5 | 41.5 | 12.2 | 48.8 | 75.6 | 34.1 | 58.5 | 26.8 | 78.0 | 46.3 | 24.4 |
| ABUc | 98.5 | 54.4 | 35.3 | 33.8 | 26.5 | 33.8 | 23.5 | 63.2 | 73.5 | 51.5 | 45.6 | 41.2 | 83.8 | 35.3 | 16.2 |
| Cystitis | 97.3 | 67.6 | 48.6 | 32.4 | 16.2 | 32.4 | 18.9 | 54.1 | 83.8 | 81.1 | 43.2 | 48.6 | 89.2 | 37.8 | 10.8 |
| Pyelonephritis | 98.7 | 63.6 | 48.1 | 13.0 | 28.6 | 51.9 | 29.9 | 67.5 | 89.6 | 61.0 | 66.2 | 41.6 | 93.5 | 55.8 | 27.3 |
| tosA -positive strains | 98.4 | 59.4 | 70.3 | 37.5 | 100.0 | 67.2 | 89.1 | 96.9 | 98.4 | 92.2 | 67.2 | 59.4 | 98.4 | 67.2 | 20.3 |
| tosA-negative strains | 98.4 | 47.2 | 21.6 | 12.0 | 0.0 | 26.8 | 2.0 | 36.8 | 61.6 | 36.4 | 43.2 | 28.0 | 69.6 | 34.4 | 18.4 |
a
Gene prevalence is expressed as the percentage of isolates that scored on multiplex PCR.
b
CH, compromised host anatomy.
c
ABU, asymptomatic bacteriuria isolates.