Table 1. Diagnostic performance of three rapid antigen assays for the detection of influenza A virus

Ann Clin Microbiol 2021;24:21-26. Comparative Evaluation of the STANDARD F Influenza A/B FIA Test with the Sofia Influenza A+B FIA and SD BIOLINE Influenza Ag A/B/A(H1N1) tests for Influenza A Virus Detection

Table 1. Diagnostic performance of three rapid antigen assays for the detection of influenza A virus

Test	Sensitivity % (95% CI)	Specificity % (95% CI)
STANDARD F Influenza A/B FIA	50.7 (38.4-63.0)	100 (97.1-100)
Sofia Influenza A+B FIA	50.7 (38.4-63.0)	100 (97.1-100)
SD BIOLINE Influenza Ag	29.9 (19.6-42.4)	100 (97.1-100)

Abbreviations: CI, confidence interval; FIA, fluorescent immunoassay.