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Result interpretation of ELISA for Q fever.
| S/P% values* | Interpretation of result |
|---|---|
| S/P% ≤ 40 | Negative |
| 40 < S/P% ≤ 50 | Doubtful |
| 50 < S/P% ≤ 80 | Positive |
| S/P% 80 > 80 | Strong positive |
*The sample (S) to positive (P) was estimated using the following formula: S/P = ((OD Sample − ODNC)/(ODPC − ODNC) × 100).
