TABLE 1.
Strains used in this study
| Strain | Description | Reference(s) or source |
|---|---|---|
| 85-170 Nalr | EHEC O157:H7, spontaneous stx1 and stx2 mutant, eaeγ, nalidixic acid resistant | 35 |
| EDL933 | EHEC O157:H7, stx1/stx2 positive, eaeγ | ATCC |
| TUV 93-0 | EDL933, EHEC O157:H7, stx, eaeγ | ATCC |
| TUV 93-0Δtir | Δtir in TUV 93-0 | 19 |
| 193 Nalr | EHEC O26:H−, stx1 positive, eaeβ | 23, 37 |
| E45035N | EHEC O111:H−, stx1 positive, isolated from the feces of a patient with hemolytic-uremic syndrome | 28 |
| 331S89 Nalr | EHEC O26:H11, stx1 positive, eaeβ, isolate from a newborn calf with diarrhea | 17 |
| EC920201 | EHEC O111:H−, stx1 positive | 33 |