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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

From: Dual-mode SERS-based lateral flow assay strips for simultaneous diagnosis of SARS-CoV-2 and influenza a virus

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)