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Evaluation of a new, rapid, simple test for the detection of influenza virus.

Identifieur interne : 000180 ( Main/Exploration ); précédent : 000179; suivant : 000181

Evaluation of a new, rapid, simple test for the detection of influenza virus.

Auteurs : Juan Carlos Hurtado [Espagne] ; Maria Mar Mosquera [Espagne] ; Elisa De Lazzari [Espagne] ; Esteban Martínez [Espagne] ; Nuria Torner [Espagne] ; Ricard Isanta [Espagne] ; Patricia De Molina [Espagne] ; Tomás Pumarola [Espagne] ; Maria Angeles Marcos [Espagne] ; Jordi Vila ; Jordi Vila Estape

Source :

RBID : pubmed:25656393

Descripteurs français

English descriptors

Abstract

BACKGROUND

Influenza virus infections are responsible for significant morbidity and mortality in both pediatric and adult populations worldwide. Rapid and accurate diagnosis of influenza is necessary for appropriate patient management during the influenza season and for optimal utilization of anti-influenza therapy. We prospectively tested the accuracy of a simple and rapid diagnostic method.

METHODS

Ninety-eight samples (nasal and pharyngeal swabs) from patients with upper respiratory tract infection symptoms who presented to primary healthcare centres in Barcelona (Spain) were prospectively analyzed. The samples were collected as part of influenza surveillance program. Samples that had enough volume to make the new test after aliquoting the amount needed to perform routine tests were included. None of the samples were pre-selected as a result of their status in relation to influenza virus. Samples were analyzed by in-house real-time PCR and Alere i Influenza A & B (Alere i), which uses isothermal amplification of nucleic acids for the qualitative detection of influenza A and B in nasal swabs transported in viral transport media. The two techniques were compared by positive percent agreement (PPA) and negative percent agreement (NPA). Statistical analysis was performed with Stata.

RESULTS

Of the 98 samples analysed 90 were concordant; 46 (46.9%) were positive and 44 (44.9%) were negative. Five samples showed invalid results with the Alere i test and could be not re-tested due to insufficient sample volume and were not included in the final statistical analysis. In the 93 remaining samples, the Alere i test showed 97% of accuracy having correctly classified 90 samples. We obtained discordant results in 3 samples (3%). The PPA was 93.8% for influenza A and 94.1% for influenza B, and NPA was 100% for influenza A and influenza B virus. In addition, the Alere i was very rapid (15 minutes or less) and extremely easy to use.

CONCLUSIONS

The Alere i test provided a good correlation compared to the real-time PCR test for the diagnosis of influenza. Since this method can be performed in minutes, it allows immediate, accurate clinical decisions to prescribe appropriate antiviral treatment or isolation of patients.


DOI: 10.1186/s12879-015-0775-5
PubMed: 25656393
PubMed Central: PMC4369360


Affiliations:


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Le document en format XML

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<name sortKey="Martinez, Esteban" sort="Martinez, Esteban" uniqKey="Martinez E" first="Esteban" last="Martínez">Esteban Martínez</name>
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<nlm:affiliation>CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain. nuria.torner@gencat.cat.</nlm:affiliation>
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<name sortKey="Isanta, Ricard" sort="Isanta, Ricard" uniqKey="Isanta R" first="Ricard" last="Isanta">Ricard Isanta</name>
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<nlm:affiliation>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona, Spain. risanta@clinic.ub.es.</nlm:affiliation>
<country xml:lang="fr">Espagne</country>
<wicri:regionArea>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona</wicri:regionArea>
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<settlement type="city">Barcelone</settlement>
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<name sortKey="De Molina, Patricia" sort="De Molina, Patricia" uniqKey="De Molina P" first="Patricia" last="De Molina">Patricia De Molina</name>
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<nlm:affiliation>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona, Spain. patriciademolina@gmail.com.</nlm:affiliation>
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<wicri:regionArea>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona</wicri:regionArea>
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<name sortKey="Pumarola, Tomas" sort="Pumarola, Tomas" uniqKey="Pumarola T" first="Tomás" last="Pumarola">Tomás Pumarola</name>
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<nlm:affiliation>Department of Microbiology, Hospital Universitari Vall d'Hebron (HUVH), Universidad Autónoma de Barcelona (UAB), Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain. tpumarola@vhebron.net.</nlm:affiliation>
<country xml:lang="fr">Espagne</country>
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<name sortKey="Marcos, Maria Angeles" sort="Marcos, Maria Angeles" uniqKey="Marcos M" first="Maria Angeles" last="Marcos">Maria Angeles Marcos</name>
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<nlm:affiliation>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona, Spain. mmarcos@clinic.ub.es.</nlm:affiliation>
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<wicri:regionArea>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona</wicri:regionArea>
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<affiliation wicri:level="3">
<nlm:affiliation>Barcelona Centre for International Health Research (CRESIB, Hospital Clinic-Universitat de Barcelona), Barcelona, Spain. mmarcos@clinic.ub.es.</nlm:affiliation>
<country xml:lang="fr">Espagne</country>
<wicri:regionArea>Barcelona Centre for International Health Research (CRESIB, Hospital Clinic-Universitat de Barcelona), Barcelona</wicri:regionArea>
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<settlement type="city">Barcelone</settlement>
<region nuts="2" type="region">Catalogne</region>
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<name sortKey="Vila, Jordi" sort="Vila, Jordi" uniqKey="Vila J" first="Jordi" last="Vila">Jordi Vila</name>
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<name sortKey="Estape, Jordi Vila" sort="Estape, Jordi Vila" uniqKey="Estape J" first="Jordi Vila" last="Estape">Jordi Vila Estape</name>
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<title level="j">BMC infectious diseases</title>
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<term>Adult (MeSH)</term>
<term>Child (MeSH)</term>
<term>Humans (MeSH)</term>
<term>Influenza A virus (genetics)</term>
<term>Influenza A virus (isolation & purification)</term>
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<term>Time Factors (MeSH)</term>
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<term>ARN viral (génétique)</term>
<term>ARN viral (isolement et purification)</term>
<term>Adulte (MeSH)</term>
<term>Enfant (MeSH)</term>
<term>Espagne (épidémiologie)</term>
<term>Facteurs temps (MeSH)</term>
<term>Grippe humaine (diagnostic)</term>
<term>Grippe humaine (virologie)</term>
<term>Grippe humaine (épidémiologie)</term>
<term>Humains (MeSH)</term>
<term>Nez (virologie)</term>
<term>Pharynx (virologie)</term>
<term>Réaction de polymérisation en chaine en temps réel (MeSH)</term>
<term>Sensibilité et spécificité (MeSH)</term>
<term>Techniques d'amplification d'acides nucléiques (méthodes)</term>
<term>Virus de la grippe A (génétique)</term>
<term>Virus de la grippe A (isolement et purification)</term>
<term>Virus influenza B (génétique)</term>
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<term>Grippe humaine</term>
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<keywords scheme="MESH" qualifier="epidemiology" xml:lang="en">
<term>Influenza, Human</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en">
<term>Influenza A virus</term>
<term>Influenza B virus</term>
</keywords>
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<term>ARN viral</term>
<term>Virus de la grippe A</term>
<term>Virus influenza B</term>
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<term>Influenza A virus</term>
<term>Influenza B virus</term>
<term>RNA, Viral</term>
</keywords>
<keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr">
<term>ARN viral</term>
<term>Virus de la grippe A</term>
<term>Virus influenza B</term>
</keywords>
<keywords scheme="MESH" qualifier="methods" xml:lang="en">
<term>Nucleic Acid Amplification Techniques</term>
</keywords>
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<term>Techniques d'amplification d'acides nucléiques</term>
</keywords>
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<term>Grippe humaine</term>
<term>Nez</term>
<term>Pharynx</term>
</keywords>
<keywords scheme="MESH" qualifier="virology" xml:lang="en">
<term>Influenza, Human</term>
<term>Nose</term>
<term>Pharynx</term>
</keywords>
<keywords scheme="MESH" qualifier="épidémiologie" xml:lang="fr">
<term>Espagne</term>
<term>Grippe humaine</term>
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<term>Adult</term>
<term>Child</term>
<term>Humans</term>
<term>Real-Time Polymerase Chain Reaction</term>
<term>Sensitivity and Specificity</term>
<term>Time Factors</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Adulte</term>
<term>Enfant</term>
<term>Facteurs temps</term>
<term>Humains</term>
<term>Réaction de polymérisation en chaine en temps réel</term>
<term>Sensibilité et spécificité</term>
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<div type="abstract" xml:lang="en">
<p>
<b>BACKGROUND</b>
</p>
<p>Influenza virus infections are responsible for significant morbidity and mortality in both pediatric and adult populations worldwide. Rapid and accurate diagnosis of influenza is necessary for appropriate patient management during the influenza season and for optimal utilization of anti-influenza therapy. We prospectively tested the accuracy of a simple and rapid diagnostic method.</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>METHODS</b>
</p>
<p>Ninety-eight samples (nasal and pharyngeal swabs) from patients with upper respiratory tract infection symptoms who presented to primary healthcare centres in Barcelona (Spain) were prospectively analyzed. The samples were collected as part of influenza surveillance program. Samples that had enough volume to make the new test after aliquoting the amount needed to perform routine tests were included. None of the samples were pre-selected as a result of their status in relation to influenza virus. Samples were analyzed by in-house real-time PCR and Alere i Influenza A & B (Alere i), which uses isothermal amplification of nucleic acids for the qualitative detection of influenza A and B in nasal swabs transported in viral transport media. The two techniques were compared by positive percent agreement (PPA) and negative percent agreement (NPA). Statistical analysis was performed with Stata.</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>RESULTS</b>
</p>
<p>Of the 98 samples analysed 90 were concordant; 46 (46.9%) were positive and 44 (44.9%) were negative. Five samples showed invalid results with the Alere i test and could be not re-tested due to insufficient sample volume and were not included in the final statistical analysis. In the 93 remaining samples, the Alere i test showed 97% of accuracy having correctly classified 90 samples. We obtained discordant results in 3 samples (3%). The PPA was 93.8% for influenza A and 94.1% for influenza B, and NPA was 100% for influenza A and influenza B virus. In addition, the Alere i was very rapid (15 minutes or less) and extremely easy to use.</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>CONCLUSIONS</b>
</p>
<p>The Alere i test provided a good correlation compared to the real-time PCR test for the diagnosis of influenza. Since this method can be performed in minutes, it allows immediate, accurate clinical decisions to prescribe appropriate antiviral treatment or isolation of patients.</p>
</div>
</front>
</TEI>
<pubmed>
<MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM">
<PMID Version="1">25656393</PMID>
<DateCompleted>
<Year>2015</Year>
<Month>12</Month>
<Day>18</Day>
</DateCompleted>
<DateRevised>
<Year>2019</Year>
<Month>12</Month>
<Day>10</Day>
</DateRevised>
<Article PubModel="Electronic">
<Journal>
<ISSN IssnType="Electronic">1471-2334</ISSN>
<JournalIssue CitedMedium="Internet">
<Volume>15</Volume>
<PubDate>
<Year>2015</Year>
<Month>Feb</Month>
<Day>06</Day>
</PubDate>
</JournalIssue>
<Title>BMC infectious diseases</Title>
<ISOAbbreviation>BMC Infect. Dis.</ISOAbbreviation>
</Journal>
<ArticleTitle>Evaluation of a new, rapid, simple test for the detection of influenza virus.</ArticleTitle>
<Pagination>
<MedlinePgn>44</MedlinePgn>
</Pagination>
<ELocationID EIdType="doi" ValidYN="Y">10.1186/s12879-015-0775-5</ELocationID>
<Abstract>
<AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">Influenza virus infections are responsible for significant morbidity and mortality in both pediatric and adult populations worldwide. Rapid and accurate diagnosis of influenza is necessary for appropriate patient management during the influenza season and for optimal utilization of anti-influenza therapy. We prospectively tested the accuracy of a simple and rapid diagnostic method.</AbstractText>
<AbstractText Label="METHODS" NlmCategory="METHODS">Ninety-eight samples (nasal and pharyngeal swabs) from patients with upper respiratory tract infection symptoms who presented to primary healthcare centres in Barcelona (Spain) were prospectively analyzed. The samples were collected as part of influenza surveillance program. Samples that had enough volume to make the new test after aliquoting the amount needed to perform routine tests were included. None of the samples were pre-selected as a result of their status in relation to influenza virus. Samples were analyzed by in-house real-time PCR and Alere i Influenza A & B (Alere i), which uses isothermal amplification of nucleic acids for the qualitative detection of influenza A and B in nasal swabs transported in viral transport media. The two techniques were compared by positive percent agreement (PPA) and negative percent agreement (NPA). Statistical analysis was performed with Stata.</AbstractText>
<AbstractText Label="RESULTS" NlmCategory="RESULTS">Of the 98 samples analysed 90 were concordant; 46 (46.9%) were positive and 44 (44.9%) were negative. Five samples showed invalid results with the Alere i test and could be not re-tested due to insufficient sample volume and were not included in the final statistical analysis. In the 93 remaining samples, the Alere i test showed 97% of accuracy having correctly classified 90 samples. We obtained discordant results in 3 samples (3%). The PPA was 93.8% for influenza A and 94.1% for influenza B, and NPA was 100% for influenza A and influenza B virus. In addition, the Alere i was very rapid (15 minutes or less) and extremely easy to use.</AbstractText>
<AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">The Alere i test provided a good correlation compared to the real-time PCR test for the diagnosis of influenza. Since this method can be performed in minutes, it allows immediate, accurate clinical decisions to prescribe appropriate antiviral treatment or isolation of patients.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y">
<Author ValidYN="Y">
<LastName>Hurtado</LastName>
<ForeName>Juan Carlos</ForeName>
<Initials>JC</Initials>
<AffiliationInfo>
<Affiliation>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona, Spain. jhurtado@clinic.ub.es.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Mosquera</LastName>
<ForeName>Maria Mar</ForeName>
<Initials>MM</Initials>
<AffiliationInfo>
<Affiliation>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona, Spain. mdmosquera@clinic.ub.es.</Affiliation>
</AffiliationInfo>
<AffiliationInfo>
<Affiliation>Barcelona Centre for International Health Research (CRESIB, Hospital Clinic-Universitat de Barcelona), Barcelona, Spain. mdmosquera@clinic.ub.es.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>de Lazzari</LastName>
<ForeName>Elisa</ForeName>
<Initials>E</Initials>
<AffiliationInfo>
<Affiliation>Barcelona Centre for International Health Research (CRESIB, Hospital Clinic-Universitat de Barcelona), Barcelona, Spain. elazzari@clinic.ub.es.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Martínez</LastName>
<ForeName>Esteban</ForeName>
<Initials>E</Initials>
<AffiliationInfo>
<Affiliation>Infectious Diseases Unit, Hospital Clinic-IDIBAPS, University of Barcelona, Barcelona, Spain. estebanm@clinic.ub.es.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Torner</LastName>
<ForeName>Nuria</ForeName>
<Initials>N</Initials>
<AffiliationInfo>
<Affiliation>Public Health Agency of Catalonia, Barcelona, Spain. nuria.torner@gencat.cat.</Affiliation>
</AffiliationInfo>
<AffiliationInfo>
<Affiliation>CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain. nuria.torner@gencat.cat.</Affiliation>
</AffiliationInfo>
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<LastName>Isanta</LastName>
<ForeName>Ricard</ForeName>
<Initials>R</Initials>
<AffiliationInfo>
<Affiliation>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona, Spain. risanta@clinic.ub.es.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>de Molina</LastName>
<ForeName>Patricia</ForeName>
<Initials>P</Initials>
<AffiliationInfo>
<Affiliation>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona, Spain. patriciademolina@gmail.com.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Pumarola</LastName>
<ForeName>Tomás</ForeName>
<Initials>T</Initials>
<AffiliationInfo>
<Affiliation>Department of Microbiology, Hospital Universitari Vall d'Hebron (HUVH), Universidad Autónoma de Barcelona (UAB), Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain. tpumarola@vhebron.net.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Marcos</LastName>
<ForeName>Maria Angeles</ForeName>
<Initials>MA</Initials>
<AffiliationInfo>
<Affiliation>Department of Clinical Microbiology, Hospital Clinic, School of Medicine, University of Barcelona, Barcelona, Spain. mmarcos@clinic.ub.es.</Affiliation>
</AffiliationInfo>
<AffiliationInfo>
<Affiliation>Barcelona Centre for International Health Research (CRESIB, Hospital Clinic-Universitat de Barcelona), Barcelona, Spain. mmarcos@clinic.ub.es.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Vila</LastName>
<ForeName>Jordi</ForeName>
<Initials>J</Initials>
</Author>
<Author ValidYN="N">
<LastName>Estape</LastName>
<ForeName>Jordi Vila</ForeName>
<Initials>JV</Initials>
</Author>
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<Language>eng</Language>
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<PublicationType UI="D023362">Evaluation Study</PublicationType>
<PublicationType UI="D016428">Journal Article</PublicationType>
<PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType>
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<ArticleDate DateType="Electronic">
<Year>2015</Year>
<Month>02</Month>
<Day>06</Day>
</ArticleDate>
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<Country>England</Country>
<MedlineTA>BMC Infect Dis</MedlineTA>
<NlmUniqueID>100968551</NlmUniqueID>
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<CitationSubset>IM</CitationSubset>
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<RefSource>BMC Infect Dis. 2015;15:383</RefSource>
<PMID Version="1">26395348</PMID>
<Note>Estape, Jordi Vila [corrected to Vila, Jordi]</Note>
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<MeshHeading>
<DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D002648" MajorTopicYN="N">Child</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName>
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<MeshHeading>
<DescriptorName UI="D009980" MajorTopicYN="N">Influenza A virus</DescriptorName>
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<MeshHeading>
<DescriptorName UI="D009981" MajorTopicYN="N">Influenza B virus</DescriptorName>
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<MeshHeading>
<DescriptorName UI="D007251" MajorTopicYN="N">Influenza, Human</DescriptorName>
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<QualifierName UI="Q000453" MajorTopicYN="N">epidemiology</QualifierName>
<QualifierName UI="Q000821" MajorTopicYN="N">virology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D009666" MajorTopicYN="N">Nose</DescriptorName>
<QualifierName UI="Q000821" MajorTopicYN="N">virology</QualifierName>
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<MeshHeading>
<DescriptorName UI="D021141" MajorTopicYN="N">Nucleic Acid Amplification Techniques</DescriptorName>
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<MeshHeading>
<DescriptorName UI="D010614" MajorTopicYN="N">Pharynx</DescriptorName>
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<DescriptorName UI="D012367" MajorTopicYN="N">RNA, Viral</DescriptorName>
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<MeshHeading>
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<MeshHeading>
<DescriptorName UI="D013030" MajorTopicYN="N" Type="Geographic">Spain</DescriptorName>
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<name sortKey="Marcos, Maria Angeles" sort="Marcos, Maria Angeles" uniqKey="Marcos M" first="Maria Angeles" last="Marcos">Maria Angeles Marcos</name>
<name sortKey="Marcos, Maria Angeles" sort="Marcos, Maria Angeles" uniqKey="Marcos M" first="Maria Angeles" last="Marcos">Maria Angeles Marcos</name>
<name sortKey="Martinez, Esteban" sort="Martinez, Esteban" uniqKey="Martinez E" first="Esteban" last="Martínez">Esteban Martínez</name>
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