TABLE 2.
Summary of EQA test outcomes per sample
| Sample no. | Strain or sample | No. of copies/0.2 ml | No. of tests with: |
Total % of tests with correct result | ||
|---|---|---|---|---|---|---|
| Correct result | Inconclusive result | False-positive result | ||||
| 4 | ZIKV (Asian lineage) | 5.54E+6 | 83 | 0 | 2 | 97.6 |
| 5 | ZIKV (Asian lineage) | 3.62E+4 | 67 | 1 | 17 | 78.8 |
| 6 | ZIKV (Asian lineage) | 3.62E+2 | 45 | 1 | 39 | 52.9 |
| 7 | ZIKV (African lineage) | 1.2E+6 | 80 | 2 | 3 | 94.1 |
| 8 | ZIKV (African lineage) | 8.3E+3 | 56 | 2 | 27 | 65.9 |
| 11 | ZIKV (Asian lineage) | 2.5E+8 | 85 | 0 | 0 | 100 |
| 1 | Chikungunya virus (Asian lineage) | 2.05E+5 | 84 | 1 | 0 | 98.8 |
| 2 | Yellow fever virus | 8.53E+6 | 84 | 1 | 0 | 98.8 |
| 3 | Dengue virus type 1 | 5.84E+4 | 80 | 1 | 4 | 94.1 |
| 9 | Negative-control plasma | 84 | 0 | 1 | 98.8 | |
| 10 | Negative-control plasma | 83 | 0 | 2 | 97.6 | |
| 12 | Negative-control urine | 75 | 2 | 7 | 89.3a | |
a
The total percentage of 84 tests conducted with the correct result (all others based on the total of 85 tests).