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Updated: May 30, 2026

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Rapid Molecular Detection and Differentiation of Influenza Viruses A and B
Published on: January 30, 2017
Retrospective and prospective verification of the Cepheid Xpert influenza virus assay
Elena B Popowitch1, Elaine Rogers, Melissa B Miller
1UNC School of Medicine, Department of Pathology and Laboratory Medicine, Campus Box 7525, Chapel Hill, NC 27599-7525, USA.
Journal of Clinical Microbiology
|July 22, 2011
Abstract:
We performed a retrospective (n = 121) and prospective (n = 305) verification of the Cepheid Xpert Flu assay to determine its performance characteristics. The overall sensitivity and specificity were 93% and 100%, respectively. Nasopharyngeal specimen sensitivities were 100% for seasonal influenza A/H1 virus and influenza A/H3 virus, 90% for influenza A/2009/H1N1 virus, and 95% for influenza B virus.

