Evidence map›Paper›PMID 21075679›Full record

ArticleJournal of clinical virology : the official publication of the Pan American Society for Clinical Virology2011

Singleplex real-time RT-PCR for detection of influenza A virus and simultaneous differentiation of A/H1N1v and evaluation of the RealStar influenza kit.

Marcus Panning, Sigrid Baumgarte, Thomas Laue, Sibylle Bierbaum, Sabine Raith, Jan Felix Drexler, Angelika Helmer, Valeria Falcone-Kapper, Georg Kochs, Hartmut Campe and 3 more

Open access · greenAbstract readValidation Study
In one paragraph

Article in Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.3field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 15 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 1 country.

Marcus PanningDepartment of Virology, University of Freiburg, Hermann-Herder Str. 11, 79104 Freiburg, Germany. marcus.panning@uniklinik-freiburg.de
Sigrid Baumgarte
Thomas Laue
Sibylle Bierbaum
Sabine Raith
Jan Felix Drexler
Angelika Helmer
Valeria Falcone-Kapper
Georg Kochs
Hartmut Campe
Daniela Huzly
Anna Maria Eis-Hübinger
Christian Drosten
University of Freiburg · DEUniversity of Bonn · DECS Diagnostics · DEInstitut für Hygiene und Umwelt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA novel influenza A virus, subtype A/H1N1v emerged in April 2009 and caused the first influenza pandemic of the 21st century. Reliable detection and differentiation from seasonal influenza viruses is mandatory for appropriate case management as well as public health.

objectivesTo develop and technically validate a novel one-step real-time RT-PCR assay which can be used for influenza A virus screening and subtyping of A/H1N1v in a singleplex fashion. To assess the clinical performance of a novel commercial influenza RT-PCR kit based on the in-house version. STUDY

designA real-time RT-PCR assay targeting the matrix gene of influenza A viruses was developed and validated using in vitro transcribed RNA derived from influenza A/H1N1v, A/H1N1 and A/H3N2 virus as well as plaque-quantified influenza A/H1N1v, A/H1N1 and A/H3N2 virus samples. After validation of the in-house version the commercial RealStar kit was used to assess the clinical performance and specificity on a panel of influenza viruses including A/H1N1v, A/H1N1, swine A/H1N1, A/H3N2, avian A/H5N1 as well as patient specimens.

resultsThe lower limit of detection of the in-house version was 2149, 1376 and 2994 RNA copies/ml for A/H1N1v, A/H1N1 and A/H3N2, respectively. The RealStar kit displayed 100% sensitivity and specificity and could reliably discriminate influenza A viruses from A/H1N1v. No cross reaction with swine A/H1N1 and A/H1N2 was observed with the RealStar A/H1N1v specific probe.

conclusionBoth assays demonstrated high sensitivity and specificity and might assist in the diagnosis of suspected influenza cases.

Indexed as

Reverse Transcriptase Polymerase Chain ReactionBase SequenceCross ReactionsHumansInfluenza A Virus, H1N1 SubtypeInfluenza, HumanLimit of DetectionReagent Kits, DiagnosticRNA, ViralSensitivity and SpecificitySequence AlignmentViral Matrix ProteinsM1 protein, Influenza A virusReagent Kits, DiagnosticRNA, ViralViral Matrix Proteins

Identifiers

PMID21075679
PMCPMC7172518
OpenAlexW2147070502

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.