Procleix WNV Assay (FDA Approved and CE Marked)
Single-tube, highly sensitive detection of the West Nile virus RNA in blood and plasma donations.
The Procleix WNV assay is CE marked and FDA approved.
Assay Performance Characteristics*
Assay chemistry
- Procleix Panther or Procleix Panther ART system
- 
                                                                Qualitative, transcription-mediated amplification (TMA) 
Indication
- Procleix Panther or Procleix Panther ART system
- 
                                                                Blood screening, source plasma, cadaveric (non-heart-beating) donors 
Collection tube
- Procleix Panther or Procleix Panther ART system
- 
                                                                Serum or plasma from K2EDTA, K3EDTA, ACD, heparin, or sodium citrate anti-coagulated tubes 
Pool sizes
- Procleix Panther or Procleix Panther ART system
- 
                                                                IDT-NAT, pools of 4, 8, or 16 
Assay kit size
- Procleix Panther or Procleix Panther ART system
- 
                                                                1000 or 5000 tests 
Detected virus
- Procleix Panther or Procleix Panther ART system
- 
                                                                WNV lineage 1 & 2 
| Platform | Procleix Panther or Procleix Panther ART system | 
|---|---|
| Assay chemistry | Qualitative, transcription-mediated amplification (TMA) | 
| Indication | Blood screening, source plasma, cadaveric (non-heart-beating) donors | 
| Collection tube | Serum or plasma from K2EDTA, K3EDTA, ACD, heparin, or sodium citrate anti-coagulated tubes | 
| Pool sizes | IDT-NAT, pools of 4, 8, or 16 | 
| Assay kit size | 1000 or 5000 tests | 
| Detected virus | WNV lineage 1 & 2 | 
Specificity in Normal Blood Donor Plasma Specimens
16-sample pool
- N
- 
                                                                10,631 
- Specificity %
- 
                                                                100 
- 95% confidence interval
- 
                                                                99.965-100 
IDT (individual donation)
- N
- 
                                                                13,371 
- Specificity %
- 
                                                                100 
- 95% confidence interval
- 
                                                                99.972-100 
| Sample Type | N | Specificity % | 95% confidence interval | 
|---|---|---|---|
| 16-sample pool | 10,631 | 100 | 99.965-100 | 
| IDT (individual donation) | 13,371 | 100 | 99.972-100 | 
Analytical Sensitivity
Detection probabilities (copies/mL)
Health Canada reference standard
- 50% (95% fiducial limits)
- 
                                                                2.0 (1.6-2.4) 
- 95% (95% fiducial limits)
- 
                                                                11.9 (9.6-15.9) 
WNV Lineage 1 IVT
- 50% (95% fiducial limits)
- 
                                                                2.8 (2.3-3.2) 
- 95% (95% fiducial limits)
- 
                                                                12.9 (10.6-16.7) 
WNV Lineage 2 IVT
- 50% (95% fiducial limits)
- 
                                                                3.1 (2.7-3.6) 
- 95% (95% fiducial limits)
- 
                                                                12.0 (10.0-15.2) 
| Panel tested | 50% (95% fiducial limits) | 95% (95% fiducial limits) | 
|---|---|---|
| Health Canada reference standard | 2.0 (1.6-2.4) | 11.9 (9.6-15.9) | 
| WNV Lineage 1 IVT | 2.8 (2.3-3.2) | 12.9 (10.6-16.7) | 
| WNV Lineage 2 IVT | 3.1 (2.7-3.6) | 12.0 (10.0-15.2) | 
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