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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Comparison of Two Real-Time Quantitative Assays for Detection of Severe Acute Respiratory Syndrome Coronavirus</title><author><name sortKey="Hourfar, Michael K" sort="Hourfar, Michael K" uniqKey="Hourfar M" first="Michael K." last="Hourfar">Michael K. Hourfar</name><affiliation><nlm:aff id="aff1">Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany</nlm:aff></affiliation></author><author><name sortKey="Roth, W Kurt" sort="Roth, W Kurt" uniqKey="Roth W" first="W. Kurt" last="Roth">W. Kurt Roth</name><affiliation><nlm:aff id="aff1">Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany</nlm:aff></affiliation></author><author><name sortKey="Seifried, Erhard" sort="Seifried, Erhard" uniqKey="Seifried E" first="Erhard" last="Seifried">Erhard Seifried</name><affiliation><nlm:aff id="aff1">Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany</nlm:aff></affiliation></author><author><name sortKey="Schmidt, Michael" sort="Schmidt, Michael" uniqKey="Schmidt M" first="Michael" last="Schmidt">Michael Schmidt</name><affiliation><nlm:aff id="aff1">Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">15131175</idno><idno type="pmc">404649</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC404649</idno><idno type="RBID">PMC:404649</idno><idno type="doi">10.1128/JCM.42.5.2094-2100.2004</idno><date when="2004">2004</date><idno type="wicri:Area/Pmc/Corpus">000647</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000647</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Comparison of Two Real-Time Quantitative Assays for Detection of Severe Acute Respiratory Syndrome Coronavirus</title><author><name sortKey="Hourfar, Michael K" sort="Hourfar, Michael K" uniqKey="Hourfar M" first="Michael K." last="Hourfar">Michael K. Hourfar</name><affiliation><nlm:aff id="aff1">Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany</nlm:aff></affiliation></author><author><name sortKey="Roth, W Kurt" sort="Roth, W Kurt" uniqKey="Roth W" first="W. Kurt" last="Roth">W. Kurt Roth</name><affiliation><nlm:aff id="aff1">Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany</nlm:aff></affiliation></author><author><name sortKey="Seifried, Erhard" sort="Seifried, Erhard" uniqKey="Seifried E" first="Erhard" last="Seifried">Erhard Seifried</name><affiliation><nlm:aff id="aff1">Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany</nlm:aff></affiliation></author><author><name sortKey="Schmidt, Michael" sort="Schmidt, Michael" uniqKey="Schmidt M" first="Michael" last="Schmidt">Michael Schmidt</name><affiliation><nlm:aff id="aff1">Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany</nlm:aff></affiliation></author></analytic><series><title level="j">Journal of Clinical Microbiology</title><idno type="ISSN">0095-1137</idno><idno type="eISSN">1098-660X</idno><imprint><date when="2004">2004</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>The new severe acute respiratory syndrome (SARS) coronavirus (CoV), described in February 2003, infected a total of 8,439 people. A total of 812 people died due to respiratory insufficiency. Close contact with symptomatic patients appeared to be the main route of transmission. However, potential transmission by blood transfusion could not be definitely excluded. Two real-time SARS-specific PCR assays were assessed for their sensitivities, agreement of test results, and intra-assay variabilities. Both assays rely on reverse transcription and amplification of extracted RNA. Dilutions of gamma-irradiated cell culture supernatants of SARS CoV-infected Vero E6 cells were prepared to determine the precisions, linear ranges, and accuracies of the assays. The linear range for the Artus RealArt HPA-Coronavirus assay (Artus assay) was 1 × 10<sup>2</sup> to 1 × 10<sup>7</sup> copies/ml, and that for the Roche LightCycler SARS CoV Quantification kit (Roche assay) was 1 × 10<sup>4</sup> to 2 × 10<sup>8</sup> copies/ml. The detection limit of the Roche assay was 3,982.1 copies/ml, whereas that of the Artus assay was 37.8 copies/ml. Detection limits were calculated with a standard preparation that was recommended for use by the World Health Organization. However, quantification of CoV in this preparation may be imprecise. In summary, both assays are suitable for quantitative measurement of SARS CoV at the high concentrations expected in sputum samples. The Artus assay is also suitable for detection of SARS CoV at the low concentrations found in serum samples.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Clin Microbiol</journal-id><journal-id journal-id-type="publisher-id">jcm</journal-id><journal-title>Journal of Clinical Microbiology</journal-title><issn pub-type="ppub">0095-1137</issn><issn pub-type="epub">1098-660X</issn><publisher><publisher-name>American Society for Microbiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">15131175</article-id><article-id pub-id-type="pmc">404649</article-id><article-id pub-id-type="publisher-id">1856-03</article-id><article-id pub-id-type="doi">10.1128/JCM.42.5.2094-2100.2004</article-id><article-categories><subj-group subj-group-type="heading"><subject>Virology</subject></subj-group></article-categories><title-group><article-title>Comparison of Two Real-Time Quantitative Assays for Detection of Severe Acute Respiratory Syndrome Coronavirus</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Hourfar</surname><given-names>Michael K.</given-names></name><xref ref-type="aff" rid="aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Roth</surname><given-names>W. Kurt</given-names></name><xref ref-type="aff" rid="aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Seifried</surname><given-names>Erhard</given-names></name><xref ref-type="aff" rid="aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Schmidt</surname><given-names>Michael</given-names></name><xref ref-type="aff" rid="aff1"></xref><xref ref-type="corresp" rid="cor1">*</xref></contrib></contrib-group><aff id="aff1">Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany</aff><author-notes><fn id="cor1"><label>*</label><p>Corresponding author. Mailing address: Institute of Transfusion Medicine and Immunohematology, Johann Wolfgang Goethe University, German Red Cross, Sandhofstr. 1, 60528 Frankfurt am Main, Germany. Phone: 0049-696782-367. Fax: 0049-696782-289. E-mail: <email>mschmidt@bsdhessen.de</email>.</p></fn></author-notes><pub-date pub-type="ppub"><month>5</month><year>2004</year></pub-date><volume>42</volume><issue>5</issue><fpage>2094</fpage><lpage>2100</lpage><history><date date-type="received"><day>31</day><month>10</month><year>2003</year></date><date date-type="rev-recd"><day>28</day><month>11</month><year>2003</year></date><date date-type="accepted"><day>25</day><month>12</month><year>2003</year></date></history><copyright-statement>Copyright © 2004, American Society for Microbiology</copyright-statement><copyright-year>2004</copyright-year><abstract><p>The new severe acute respiratory syndrome (SARS) coronavirus (CoV), described in February 2003, infected a total of 8,439 people. A total of 812 people died due to respiratory insufficiency. Close contact with symptomatic patients appeared to be the main route of transmission. However, potential transmission by blood transfusion could not be definitely excluded. Two real-time SARS-specific PCR assays were assessed for their sensitivities, agreement of test results, and intra-assay variabilities. Both assays rely on reverse transcription and amplification of extracted RNA. Dilutions of gamma-irradiated cell culture supernatants of SARS CoV-infected Vero E6 cells were prepared to determine the precisions, linear ranges, and accuracies of the assays. The linear range for the Artus RealArt HPA-Coronavirus assay (Artus assay) was 1 × 10<sup>2</sup> to 1 × 10<sup>7</sup> copies/ml, and that for the Roche LightCycler SARS CoV Quantification kit (Roche assay) was 1 × 10<sup>4</sup> to 2 × 10<sup>8</sup> copies/ml. The detection limit of the Roche assay was 3,982.1 copies/ml, whereas that of the Artus assay was 37.8 copies/ml. Detection limits were calculated with a standard preparation that was recommended for use by the World Health Organization. However, quantification of CoV in this preparation may be imprecise. In summary, both assays are suitable for quantitative measurement of SARS CoV at the high concentrations expected in sputum samples. The Artus assay is also suitable for detection of SARS CoV at the low concentrations found in serum samples.</p></abstract></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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