Antibiotic resistance of 106 APEC strains
| Antibiotics | Number of resistant strains | Percentage of resistant strains |
|---|---|---|
| Ampicillin | 106 | 100 |
| Cefotaxime | 57 | 53.77 |
| Chloramphenicol | 89 | 83.96 |
| Gentamicin | 53 | 50.00 |
| Kanamycin | 85 | 80.19 |
| Streptomycin | 68 | 64.15 |
| Sulphamethoxazole-trimethoprim | 62 | 58.49 |
| Nalidixic acid | 95 | 89.62 |
| Tetracycline | 106 | 100 |
Correlation of the O-serotype with the phylogenetic group
| Phylogenetic group | |||||
|---|---|---|---|---|---|
| O-serotype | A | B1 | B2 | D | Total |
| O1 | 2 | 2 | 1 | 0 | 5 |
| O2 | 3 | 2 | 0 | 1 | 6 |
| O4 | 2 | 0 | 1 | 0 | 3 |
| O18 | 4 | 2 | 0 | 0 | 6 |
| O45 | 2 | 1 | 1 | 1 | 5 |
| O78 | 8 | 5 | 3 | 3 | 19 |
Prevalences of virulence factors in 106 APEC strains
| Virulence factor genes | Number | Percentage | |
|---|---|---|---|
| Adhesins | |||
| Afa | 2 | 1.89 | |
| bmaE | 1 | 0.94 | |
| fimH | 102 | 96.22 | |
| focG | 2 | 1.89 | |
| Iha | 0 | 0 | |
| papA | 42 | 39.62 | |
| papC | 47 | 44.34 | |
| papEF | 43 | 40.57 | |
| papG allele I | 13 | 12.26 | |
| papG allele II | 6 | 5.66 | |
| papG allele III | 7 | 6.60 | |
| Sfa | 1 | 0.94 | |
| SfaS | 1 | 0.94 | |
| Iron chelation genes | |||
| feoB | 101 | 95.28 | |
| fyuA | 59 | 55.66 | |
| ireA | 76 | 71.70 | |
| iroN | 98 | 92.45 | |
| irp-2 | 81 | 76.42 | |
| iucC | 72 | 67.92 | |
| iutA | 87 | 82.08 | |
| sitA | 62 | 58.49 | |
| Miscellaneous | |||
| ibeA | 30 | 28.30 | |
| malX | 33 | 31.13 | |
| Protectins | |||
| Iss | 87 | 82.08 | |
| kpsMT (K1) | 63 | 59.43 | |
| kpsMT II | 58 | 54.72 | |
| kpsMT III | 12 | 11.32 | |
| Rfc | 0 | 0 | |
| traT | 87 | 82.08 | |
| ompT | 89 | 83.96 | |
| Toxins | |||
| cdtB | 2 | 1.89 | |
| cnf-1 | 0 | 0 | |
| hlyD | 0 | 0 |
Phylogenetic groups of 106 APEC strains
| Phylogenetic group | Number | Percentage |
|---|---|---|
| A | 47 | 43.34 |
| B1 | 15 | 14.15 |
| B2 | 32 | 30.19 |
| D | 12 | 11.32 |