Table 7 Frequency of virulence genes among antibiotic-resistant E. coli isolates
Antibiotic resistance (beef and dairy cattle) | Beef cattle E. coli carry virulence genes n (%) | Dairy cattle E. coli carry virulence genes n (%) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Irp2 | fyuA | Stx1 | F41 | hylA | eaeA | Irp2 | fyuA | F41 | Stx1 | eaeA | K99 | STa | |
PEN | 28/43 | 27/43 | 10/43 | 7/43 | 1/43 | 1/43 | 6/27 | 6/27 | 4/27 | 1/27 | 1/27 | 1/27 | 1/27 |
(43) and (27) | 65.1% | 62.8% | 23.3% | 16.9% | 0.02% | 0.02% | 22.2% | 22.2% | 14.8% | 3.7% | 3.7% | 3.7% | 3.7% |
AMC | 18/24 | 13/24 | 4/24 | 7/24 | 0/24 | 0/24 | 6/22 | 5/22 | 4/22 | 1/22 | 1/22 | 1/22 | 1/22 |
(24) and (22) | 75% | 54.2% | 16.7% | 25.9% | 0% | 0% | 27.3% | 22.7% | 18.2% | 0.05% | 0.05% | 0.05% | 0.05% |
AMP | 25/38 | 22/38 | 7/38 | 7/38 | 1/38 | 1/38 | 6/26 | 5/26 | 4/26 | 1/22 | 1/22 | 1/22 | 1/22 |
(38) and (26) | 65.8% | 57.9% | 18.4% | 18.4% | 0.03% | 0.03% | 23.1% | 19.2% | 15.4% | 0.05% | 0.05% | 0.05% | 0.05% |
CFZ | 17/21 | 11/21 | 3/21 | 7/21 | 0/21 | 0/21 | 4/19 | 4/19 | 4/19 | 1/22 | 1/22 | 1/22 | 1/22 |
(21) and (19) | 80.9% | 52.4% | 14.3% | 33.3% | 0% | 0% | 21.1% | 21.1% | 21.1% | 0.05% | 0.05% | 0.05% | 0.05% |
STR | 16/22 | 12/22 | 4/22 | 7/20 | 0/18 | 0/18 | 4/18 | 4/18 | 4/18 | 1/22 | 1/22 | 1/22 | 1/22 |
(22) and (18) | 72.7% | 54.5% | 18.2% | 35% | 0% | 0% | 22.2% | 22.2% | 22.2% | 0.05% | 0.05% | 0.05% | 0.05% |
GEN | 16/20 | 11/20 | 4/20 | 6/20 | 0/20 | 0/20 | 3/17 | 2/17 | 0/17 | 0/17 | 0/17 | 0/17 | 0/17 |
(20) and (17) | 80% | 55% | 20% | 30% | 0% | 0% | 17.6% | 11.8% | 0% | 0% | 0% | 0% | 0% |
KAN | 14/19 | 11/19 | 4/19 | 6/19 | 0/19 | 0/19 | 2/12 | 2/12 | 3/12 | 0/12 | 0/12 | 1/22 | 1/22 |
(19) and (12) | 73.7% | 57.9% | 21.1% | 31.6% | 0% | 0% | 16.7% | 16.7% | 25% | 0% | 0% | 0.05% | 0.05% |
TET | 22/31 | 17/31 | 7/31 | 7/31 | 1/31 | 1/31 | 6/21 | 5/21 | 4/21 | 1/21 | 1/21 | 1/21 | 1/21 |
(31) and (21) | 70.9% | 54.8% | 22.6% | 22.6% | 0.03% | 0.03% | 28.6% | 23.8% | 19% | 0.05% | 0.05% | 0.05% | 0.05% |
COM | 18/26 | 14/26 | 4/26 | 7/26 | 0/26 | 0/26 | 5/21 | 5/21 | 4/21 | 1/21 | 1/21 | 1/21 | 1/21 |
(26) and (21) | 69.2% | 53.8% | 15.9% | 26.9% | 0% | 0% | 23.8% | 23.8% | 19% | 0.05% | 0.05% | 0.05% | 0.05% |
SULF | 20/30 | 16/30 | 5/30 | 7/30 | 1/30 | 1/30 | 6/22 | 6/22 | 4/22 | 1/22 | 1/22 | 1/22 | 1/22 |
(30) and (22) | 66.7% | 53.3% | 16.7% | 23.3% | 0.03% | 0.03% | 27.3% | 27.3% | 18.2% | 0.05% | 0.05% | 0.05% | 0.05% |
CIP | 18/22 | 12/22 | 4/22 | 6/22 | 0/22 | 0/22 | 4/18 | 3/18 | 4/18 | 0/18 | 1/18 | 1/18 | 1/18 |
(22) and (18) | 81.8% | 54.5% | 18.2% | 27.3% | 0% | 0% | 22.2% | 16.7% | 22.2% | 0% | 0.06% | 0.06% | 0.06% |
ENR | 18/23 | 12/23 | 4/23 | 7/23 | 0/23 | 0/23 | 4/17 | 3/17 | 3/17 | 1/17 | 0/17 | 1/17 | 1/17 |
(23) and (17) | 78.3% | 52.1% | 17.4% | 30.4% | 0% | 0% | 23.5% | 17.6% | 17.6% | 0.06% | 0% | 0.06% | 0.06% |
OFX | 17/19 | 13/19 | 4/19 | 6/19 | 0/19 | 0/19 | 3/17 | 3/17 | 3/17 | 0/17 | 0/17 | 0/17 | 0/17 |
(19) and (17) | 89.5% | 68.4% | 21.1% | 31.6% | 0% | 0% | 17.6% | 17.6% | 17.6% | 0% | 0% | 0% | 0% |
FFC | 12/17 | 7/17 | 2/17 | 7/17 | 0/17 | 0/17 | 2/9 | 2/9 | 1/9 | 1/9 | 1/9 | 0/9 | 0/9 |
(17) and (9) | 70.6% | 41.2% | 11.8% | 41.2% | 0% | 0% | 22.2% | 22.2% | 11.1% | 11.1% | 11.1% | 0% | 0% |
PB | 0/1 | 1/1 | 0/1 | 0/1 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
(1) and (0) | 0% | 100% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |