Table 2 Statistical analysis of the diagnostic results of SARS-CoV-2 and influenza A virus using LFA and dual-mode SERS-LFA strips on 39 clinical samples
Sample | Group | Sensitivity | |
|---|---|---|---|
LFA | Dual-mode SERS-LFA | ||
SARS-CoV-2 Positive | < 20 | 100% (1/1) | 100% (1/1) |
20–25 | 85% (6/7) | 100% (7/7) | |
25–30 | 66% (6/9) | 88% (8/9) | |
> 30 | 9% (1/11) | 54% (6/11) | |
Influenza A virus Positive | 25–30 | 75% (3/4) | 100% (4/4) |
> 30 | 50% (1/2) | 100% (2/2) | |
Sample | Group | Specificity | |
|---|---|---|---|
LFA | Dual-mode SERS-LFA | ||
Negative | Negative | 100% (5/5) | 100% (5/5) |