TABLE 2.
Characterization of VTEC isolates with respect to O:H serotype, virulence factors, and PFGE type
| Farm | Animal | No. of isolates | Serotype | Virulence profilea | PFGE type |
|---|---|---|---|---|---|
| A | Cattle | 1 | O136:H12 | vtx1 | NDb |
| 3 | O116:H− | vtx2 | ND | ||
| 1 | Rough:H19 | vtx2 saa ehxA | ND | ||
| B | Cattle | 1 | O15:H16 | vtx2 espP | 4 |
| 2 | O116:H− | vtx2 | 2 | ||
| 1 | O116:H− | vtx2 | 6 | ||
| 6 | O136:H12 | vtx1 | 5 | ||
| 1 | O136:H12 | vtx1 | 3 | ||
| 1 | O172:H28 | vtx1 ehxA espP | 1 | ||
| Norway rat | 1 | O136:H12 | vtx1 | 5 | |
| C | Cattle | 1 | O2:H29 | vtx2 | 7c |
| 4 | O113:H− | vtx2 saa ehxA | 8 | ||
| Starling | 6 | O2:H29 | vtx2 | 7c |
a
Examined for the following factors: vtx1, vtx2, eae, saa, ehxA, katP, espD, and etpD.
b
ND, not determined.
c
A profile was only obtained when thiourea was added to the running buffer.