Rapid molecular detection and differentiation of influenza viruses A and B Journal Article


Authors: Otto, C. C.; Kaplan, S. E.; Stiles, J.; Mikhlina, A.; Lee, C.; Babady, N. E.; Tang, Y. W.
Article Title: Rapid molecular detection and differentiation of influenza viruses A and B
Abstract: Influenza is a contagious respiratory illness caused by influenza viruses A and B in humans and causes a significant amount of morbidity and mortality every year. The Influenza A and B assay was the first CLIA-waived molecular rapid flu test available. The Influenza A and B test works by employing isothermal amplification with influenza-specific primers followed by target detection with molecular beacon probes. Here, the performance of the Influenza A and B assay on frozen, archived nasopharyngeal swab (NPS) specimens stored in viral transport medium (VTM) were compared to a respiratory panel assay. The performance of the Influenza A and B assay was evaluated by comparing the results to the respiratory panel reference method. The sensitivity for total influenza virus A was 67.5% (95% CI (CI), 56.6-78.5) and the specificity was 86.9% (CI, 71.0-100). For influenza virus B testing, the sensitivity and specificity were 90.2% (CI, 68.5-100) and 98.8% (CI, 68.5-100), respectively. This system has the advantage of a significantly shorter test time than any other currently available molecular assay and the simple, pipette-free procedure runs on a fully integrated, closed, small-footprint system. Overall, the Influenza A and B assay evaluated in this study has the potential to serve as a point-of-care rapid influenza diagnostic test. © 2017 Journal of Visualized Experiments.
Keywords: infection; influenza; molecular diagnostics; point-of-care testing; flu; influenza a and b assay; issue 119; respiratory specimens
Journal Title: Journal of Visualized Experiments
Issue: 119
ISSN: 1940-087X
Publisher: MYJoVE Corporation  
Date Published: 2017-01-30
Start Page: e54312
Language: English
DOI: 10.3791/54312
PROVIDER: scopus
PUBMED: 28190065
PMCID: PMC5352307
DOI/URL:
Notes: Article -- Export Date: 2 March 2017 -- Source: Scopus
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  1. Ngolela Esther Babady
    174 Babady
  2. Jeffrey Stiles
    26 Stiles
  3. Yi-Wei Tang
    188 Tang
  4. Caitlin Carol Otto
    6 Otto
  5. Cindy Lee
    5 Lee
  6. Samuel Eliot Kaplan
    9 Kaplan