TABLE 1.
Strain characterization.
| Outbreak | Biovar/serotype | Pathogenicity score (families) | Resistance genes | Chromosomal secretion systems | |
| Y11 | NA | 4/O:3 | 0.89 (96) | vat(F), blaA | T3SS (21 ORFs) |
| Y30 | First | 4/O:3 | 0.875 (98) | sul1, aadA1, catA1, vat(F), blaA | T2SS (yts1O), T3SS (21 ORFs) |
| Y72 | Unknown | 4/O:3 | 0.875 (99) | sul1, aadA1, catA1, vat(F), blaA, tetB | T2SS (yts1O), T3SS (21 ORFs) |
| Y108 | Second | 4/O:3 | 0.872 (95) | sul1, aadA1, catA1, vat(F), blaA | T2SS (yts1O), T3SS (21 ORFs) |
| Y_Mar | Firsta | 4/O:3 | 0.875 (98) | sul1, aadA1, catA1, vat(F), blaA | T2SS (yts1O), T3SS (21 ORFs) |
| Y_May | Unknown | 4/O:3 | 0.875 (98) | sul1, aadA1, catA1, vat(F), blaA | T2SS (yts1O), T3SS (21 ORFs) |
aAs identified by this study.