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E. coli O157:H7 testing result of the 10 double-blind mock samples
| Sample No. | Oligonucleotide microarray test | Double-blind result |
| 1 | Negative | Negative |
| 2 | E. coli O157:H7 | E. coli O157:H7 |
| 3 | E. coli O157:H7 | E. coli O157:H7 |
| 4 | E. coli O157:H7 | E. coli O157:H7 |
| 5 | E. coli O157:H7 | E. coli O157:H7 |
| 6 | Negative | Negative |
| 7 | E. coli O157:H7 | E. coli O157:H7 |
| 8 | E. coli O157:H7 | E. coli O157:H7 |
| 9 | E. coli O157:H7 | E. coli O157:H7 |
| 10 | E. coli O157:H7 | E. coli O157:H7 |
