TABLE 1.
Origins and properties of STEC strains investigated for stx2e and associated gene sequences
| Strain | Serotype | Sourcea | Stx2e productionb | Virulence marker(s)c | GenBank accession no. |
|---|---|---|---|---|---|
| CB10282 | O8:H9 | Milk | Low | — | AM937001 |
| CB10284 | O8:H9 | Water | Low | — | AM939641 |
| CB10394 | O101:H9 | HF, D | High | — | AM939642 |
| CB10402 | O100:[H30] | Pork | High | STI-p | AM939643 |
| CB8771 | O159:H21 | PF | High | DA, STI-p, STII | AM940005 |
| CB7671 | ONT:H19 | HF, As | High | DA | AM940007 |
| CB8770 | ONT:H21 | PF | High | — | AM940006 |
| CB8810 | O8:H9 | PF | High | DA | AM940004 |
| 2771/97d | ONT:NM | HF, D | High | ND | AJ298298 |
a
HF, human feces; D, diarrhea; PF, fecal samples from pigs at slaughter; As, asymptomatic.
b
P1-g-EIA results for strains grown in presence of mitomycin C.
c
—, negative for virulence markers investigated here; STI-p, heat-stable enterotoxin STI (animal); DA, diffuse adherence to HEp-2 cells; STII, heat-stable enterotoxin STII; ND, not done.
d
Reference strain carrying the stx2e bacteriophage P27 (39).