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Rapid Tests for Diagnosis of Influenza Infection

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Rapid Tests for Diagnosis of Influenza Infection

Influenza viruses cause yearly epidemics of acute respiratory illness affecting 5% to 30% of the population. Diagnosing influenza on the basis of only clinical symptoms is difficult because manifestations vary and are nonspecific. Consequently, results of diagnostic tests are useful to guide clinical management. Potential benefits of rapid and accurate diagnosis of influenza infection include prompt initiation of antiviral therapy, fewer ancillary diagnostic tests, fewer hospitalizations, prompt institution of hospital infection control measures, and less unnecessary antibiotic use.
Novel digital immunoassays (DIAs) and rapid nucleic acid amplification tests (NAATs) had markedly higher sensitivities for influenza A and B in both children and adults than did traditional rapid influenza diagnostic tests  (RIDTs), with equally high specificities.

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