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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