Table 6.
Results of the 2015 EQA study for WNVa
| Virus | Copies/ml | NAT assay |
||||
|---|---|---|---|---|---|---|
| A | B | C | D | E | ||
| WNV L1 | 316 | 18/18 (100%) | 8/8 (100%) | 16/16 (100%) | 12/12 (100%) | 2/2 (100%) |
| 100 | 18/18 (100%) | 8/8 (100%) | 16/16 (100%) | 12/12 (100%) | 2/2 (100%) | |
| 31 | 16/18 (88.9%) | 8/8 (100%) | 16/16 (100%) | 12/12 (100%) | 2/2 (100%) | |
| 10 | 9/18 (50%) | 6/8 (75%) | 16/16 (100%) | 9/12 (75%) | 2/2 (100%) | |
| WNV L2 | 10,000 | 18/18 (100%) | 8/8 (100%) | 16/16 (100%) | 12/12 (100%) | 2/2 (100%) |
| 1,000 | 18/18 (100%) | 8/8 (100%) | 16/16 (100%) | 12/12 (100%) | 2/2 (100%) | |
| 100 | 17/17 (100%) | 8/8 (100%) | 16/16 (100%) | 12/12 (100%) | 2/2 (100%) | |
| 10 | 7/18 (38.9%) | 8/8 (100%) | 13/16 (81%) | 8/12 (67%) | 2/2 (100%) | |
a
Cumulative results expressed as number of positives/tested (% of positivity) obtained with the five different NAT assays.