Table 2 Virulence gene frequency in avian pathogenic Escherichia coli (APEC) and avian non-pathogenic Escherichia coli (Non-APEC) isolates
Genes | APEC isolates (n = 45) n(%) | Non-APEC isolates (n = 5) n(%) | Total (n = 50) n(%) |
|---|---|---|---|
iutA | 37(82.2) | 1 (20) | 38 (76) |
iss | 45 (100) | 0 (0) | 45 (90) |
papC | 25 (55.6) | 0 (0) | 25 (50 |
iucD | 44 (97.8) | 3 (60) | 47 (94) |
tsh | 28 (62.2) | 0 (0) | 28 (56) |
irp-2 | 33 (73.3) | 3 (60) | 36 (72) |
ompT | 45 (100) | 4 (80) | 49 (98) |
hlyF | 45 (100) | 3 (60) | 48 (96) |
iroN | 45 (100) | 1 (20) | 46 (92) |
cva/cvi | 26 (57.8) | 2 (40) | 28 (56) |
astA | 43 (95.6) | 2 (40) | 45 (90) |