Multicenter clinical evaluation of the novel Alere™ i Influenza A&B isothermal nucleic acid amplification test

Jeremiah Bell, Aleta Bonner, Daniel M. Cohen, Robert Birkhahn, Ram Yogev, Wayne Triner, Jason Cohen, Elizabeth Palavecino, Rangaraj Selvarangan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

Background: Rapid detection of influenza infection is important for patient management and timely anti-viral therapy. Rapid antigen detection tests for influenza have inferior sensitivity when compared to nucleic acid-based amplification tests. An isothermal nucleic acid amplification test that offers the potential for rapid molecular testing at the clinical point-of-care with simple equipment can improve influenza detection rates. Objectives: To evaluate the performance of Alere™ i Influenza A&B isothermal nucleic acid amplification test to detect influenza A and B in comparison to viral cell culture as reference method. Study design: A prospective, multicenter, clinical study to evaluate the clinical performance of the Alere™ i Influenza A&B assay in a point-of-care setting using prospectively enrolled specimens from both children and adults was conducted in seven sites. Results: In comparison with viral cell culture, the overall sensitivity and specificity of the Alere™ i Influenza A&B assay was 97.8% and 85.6% for the detection of influenza A, and 91.8% and 96.3% for the detection of influenza B, respectively. Following resolution of discrepant results by real-time RT-PCR the sensitivity and specificity of the Alere™ i Influenza A&B assay improved to 99.3% and 98.1% for influenza A, and 97.6% and 100% for influenza B, respectively. Conclusions: The Alere™ i Influenza A&B isothermal nucleic acid amplification test is an ideal point-of-care test for influenza detection in children and adults due to its high sensitivity and specificity and ability to generate results within 15. min from specimen receipt.

Original languageEnglish (US)
Pages (from-to)81-86
Number of pages6
JournalJournal of Clinical Virology
Volume61
Issue number1
DOIs
StatePublished - Sep 2014

Keywords

  • Alere™ i Influenza
  • Influenza
  • Nucleic acid amplification
  • POC
  • RADT

ASJC Scopus subject areas

  • Virology
  • Infectious Diseases

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