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Cross-tabulation between RT-PCR and the K9 dogs olfaction tests.
| Test | Real-time PCR test | Total | |
|---|---|---|---|
| Positive | Negative | ||
| K9 dogs olfaction test | |||
| Positive | 15 (A) | 26 (B) | 41 (A + B) |
| Negative | 3 (C) | 3246 (D) | 3249 (C + D) |
| Total | 18 (A + C) | 3272 (B + D) | 3290 (A + B + C + D) |
