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) |