Table 1. Bacterial (E. coli) strains used in the study and their respective sources.
| Arbitrary | Isolatesa | ||||||
|---|---|---|---|---|---|---|---|
| ID No.b | Original ID no. | Serotype | Source(reference) | stx1 | stx2 | groEL | |
| OP50 | E. coli OP50 | - | - | + | |||
| E1 | B471 | 1.2673 | O104:H12 | Co | + | - | + |
| E2 | B472 | JB1-95 | O111:H- | H | NT | NT | NT |
| E3 | B473 | 96–3166 | O111:NM | H | + | + | + |
| E4 | B475 | TB226 | O111:NM | H | NT | NT | NT |
| E5 | B476 | 8361 | O111:H8 | H | NT | NT | NT |
| E6 | B477 | 12893 | O111:H8 | H | NT | NT | NT |
| E7 | B478 | 14895 | O111:H8 | H | NT | NT | NT |
| E8 | B479 | DA-1 | O121:NM | H | NT | NT | NT |
| E9 | B480 | 97–3068 | O121:H19 | H | NT | NT | NT |
| E10 | B481 | 03–4064 | O121:NM | H | NT | NT | NT |
| E11 | B482 | 11435 | O121:H19 | H | NT | NT | NT |
| E12 | B483 | 9918 | O121:NM | H | - | + | + |
| E13 | B484 | 10896 | O121:NM | H | NT | NT | NT |
| E14 | B485 | 83–75 | O145:NM | H | NT | NT | NT |
| E15 | B486 | 14728 | O145:NM | H | + | - | + |
| E16 | B487 | 940941 | O145:H- | H | NT | NT | NT |
| E17 | B488 | 6383 | O145:NM | H | NT | NT | NT |
| E18 | B489 | BCL73 | O145:NM | Co | - | - | + |
| E19 | B490 | 8235 | O145:NM | H | NT | NT | NT |
| E20 | B491 | 6896 | O145:NM | H | NT | NT | NT |
| E21 | B492 | sakai | O157:H7 | H | NT | NT | NT |
| E22 | B493 | C7927 | O157:H7 | H | + | + | + |
| E23 | B494 | FSIS413-95 | O157:H7 | Gb | NT | NT | NT |
| E24 | B495 | 380–94 | O157:H7 | H | NT | NT | NT |
Bacterial strains used in this study and specification of three primers based on conventional PCR assay (H- Human; Gb- ground beef; Co- cow, NT- Not Tested)