tetano
Editor, Senior Moderator
J Clin Virol. 2019 Jul 4;118:9-13. doi: 10.1016/j.jcv.2019.07.003. [Epub ahead of print]
[h=1]Comparative analysis of Four sample-to-answer influenza A/B and RSV nucleic acid amplification assays using adult respiratory specimens.[/h] Banerjee D[SUP]1[/SUP], Kanwar N[SUP]2[/SUP], Hassan F[SUP]2[/SUP], Lankachandra K[SUP]3[/SUP], Selvarangan R[SUP]2[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] The use of Sample-to-answer (STA) platforms for the detection of influenza A/B and respiratory syncytial virus (RSV) have greatly improved patient care. These diagnostic assays based on nucleic acid amplification are rapid, accurate and relatively easy to perform.
[h=4]OBJECTIVES:[/h] We compared four such platforms for detecting FluA, FluB, and RSV from adult respiratory specimens: Hologic Panther Fusion? Flu A/B/RSV (Fusion), Cobas? Influenza A/B & RSV (Liat), Luminex Aries? Flu A/B & RSV (Aries), and Diasorin SimplexaTM Flu A/B & RSV (Simplexa).
[h=4]STUDY DESIGN:[/h] Nasopharyngeal (NP) swabs (n = 224) from adults were tested on these platforms and results were compared to Center for Disease Control and Prevention recommended real-time RT-PCR assay for influenza A/B and RSV. Subtyping for FluA and FluB was performed for discrepant analysis where applicable.
[h=4]RESULTS:[/h] Of the 82 FluA, 26 FluB, 15 RSV-positive specimens tested, the positive and negative percentage agreements (PPA and NPA respectively) for FluA detection were 100/100 (Fusion), 95.1/100 (Liat), 92.5/100 (Aries), and 84.1/99.3 (Simplexa); PPA and NPA for FluB detection were 92.3/99.5 (Fusion), 96/99.5 (Liat), 100/99.5 (Aries), and 80.8/100 (Simplexa); and for RSV detection were 100/100 (Fusion), 100/100 (Liat), 88.6/99.5 (Aries), and 73.3/100 (Simplexa). 82 confirmed FluA included 23 pH1N1 and 57 H3N2 strains with 2 strains remaining untyped. Of the 26 confirmed FluB, 25 were of the Yamagata lineage and 1 of unknown lineage.
[h=4]CONCLUSION:[/h] Only 2 STA platforms demonstrated >95% PPA for the detection of all three targets while all the 4 platforms demonstrated >95% NPA for FluA, FluB and RSV.
Copyright ? 2019 Elsevier B.V. All rights reserved.
[h=4]KEYWORDS:[/h] Adult; Diagnostic assays; Flu and RSV; Sample to answer
PMID: 31302479 DOI: 10.1016/j.jcv.2019.07.003
[h=1]Comparative analysis of Four sample-to-answer influenza A/B and RSV nucleic acid amplification assays using adult respiratory specimens.[/h] Banerjee D[SUP]1[/SUP], Kanwar N[SUP]2[/SUP], Hassan F[SUP]2[/SUP], Lankachandra K[SUP]3[/SUP], Selvarangan R[SUP]2[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] The use of Sample-to-answer (STA) platforms for the detection of influenza A/B and respiratory syncytial virus (RSV) have greatly improved patient care. These diagnostic assays based on nucleic acid amplification are rapid, accurate and relatively easy to perform.
[h=4]OBJECTIVES:[/h] We compared four such platforms for detecting FluA, FluB, and RSV from adult respiratory specimens: Hologic Panther Fusion? Flu A/B/RSV (Fusion), Cobas? Influenza A/B & RSV (Liat), Luminex Aries? Flu A/B & RSV (Aries), and Diasorin SimplexaTM Flu A/B & RSV (Simplexa).
[h=4]STUDY DESIGN:[/h] Nasopharyngeal (NP) swabs (n = 224) from adults were tested on these platforms and results were compared to Center for Disease Control and Prevention recommended real-time RT-PCR assay for influenza A/B and RSV. Subtyping for FluA and FluB was performed for discrepant analysis where applicable.
[h=4]RESULTS:[/h] Of the 82 FluA, 26 FluB, 15 RSV-positive specimens tested, the positive and negative percentage agreements (PPA and NPA respectively) for FluA detection were 100/100 (Fusion), 95.1/100 (Liat), 92.5/100 (Aries), and 84.1/99.3 (Simplexa); PPA and NPA for FluB detection were 92.3/99.5 (Fusion), 96/99.5 (Liat), 100/99.5 (Aries), and 80.8/100 (Simplexa); and for RSV detection were 100/100 (Fusion), 100/100 (Liat), 88.6/99.5 (Aries), and 73.3/100 (Simplexa). 82 confirmed FluA included 23 pH1N1 and 57 H3N2 strains with 2 strains remaining untyped. Of the 26 confirmed FluB, 25 were of the Yamagata lineage and 1 of unknown lineage.
[h=4]CONCLUSION:[/h] Only 2 STA platforms demonstrated >95% PPA for the detection of all three targets while all the 4 platforms demonstrated >95% NPA for FluA, FluB and RSV.
Copyright ? 2019 Elsevier B.V. All rights reserved.
[h=4]KEYWORDS:[/h] Adult; Diagnostic assays; Flu and RSV; Sample to answer
PMID: 31302479 DOI: 10.1016/j.jcv.2019.07.003