Rapid viral diagnosis and ambulatory management of suspected COVID-19 cases presenting at the infectious diseases referral hospital in Marseille, France, - January 31st to March 1st, 2020: A respiratory virus snapshot
Identifieur interne : 001516 ( Pmc/Corpus ); précédent : 001515; suivant : 001517Rapid viral diagnosis and ambulatory management of suspected COVID-19 cases presenting at the infectious diseases referral hospital in Marseille, France, - January 31st to March 1st, 2020: A respiratory virus snapshot
Auteurs : Sophie Amrane ; Hervé Tissot-Dupont ; Barbara Doudier ; Carole Eldin ; Marie Hocquart ; Morgane Mailhe ; Pierre Dudouet ; Etienne Ormières ; Lucie Ailhaud ; Philippe Parola ; Jean-Christophe Lagier ; Philippe Brouqui ; Christine Zandotti ; Laetitia Ninove ; Léa Luciani ; Céline Boschi ; Bernard La Scola ; Didier Raoult ; Matthieu Million ; Philippe Colson ; Philippe GautretSource :
- Travel Medicine and Infectious Disease [ 1477-8939 ] ; 2020.
Abstract
Rapid virological diagnosis is needed to limit the length of isolation for suspected COVID-19 cases.
We managed the first 280 patients suspected to have COVID-19 through a rapid care circuit and virological diagnosis in our infectious disease reference hospital in Marseille, France. Rapid viral detection was performed on sputum and nasopharyngeal samples.
Over our study period, no SARS-CoV-2 was detected. Results were obtained within approximately 3 h of the arrival of patient samples at the laboratory. Other viral infections were identified in 49% of the patients, with most common pathogens being influenza A and B viruses, rhinovirus, metapneumovirus and common coronaviruses, notably HKU1 and NL63.
Early recognition of COVID-19 is critical to isolate confirmed cases and prevent further transmission. Early rule-out of COVID-19 allows public health containment measures to be adjusted by reducing the time spent in isolation.
Url:
DOI: 10.1016/j.tmaid.2020.101632
PubMed: 32205269
PubMed Central: 7102626
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PMC:7102626Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Rapid viral diagnosis and ambulatory management of suspected COVID-19 cases presenting at the infectious diseases referral hospital in Marseille, France, - January 31st to March 1st, 2020: A respiratory virus snapshot</title><author><name sortKey="Amrane, Sophie" sort="Amrane, Sophie" uniqKey="Amrane S" first="Sophie" last="Amrane">Sophie Amrane</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Tissot Dupont, Herve" sort="Tissot Dupont, Herve" uniqKey="Tissot Dupont H" first="Hervé" last="Tissot-Dupont">Hervé Tissot-Dupont</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Doudier, Barbara" sort="Doudier, Barbara" uniqKey="Doudier B" first="Barbara" last="Doudier">Barbara Doudier</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Eldin, Carole" sort="Eldin, Carole" uniqKey="Eldin C" first="Carole" last="Eldin">Carole Eldin</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff3">Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Hocquart, Marie" sort="Hocquart, Marie" uniqKey="Hocquart M" first="Marie" last="Hocquart">Marie Hocquart</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Mailhe, Morgane" sort="Mailhe, Morgane" uniqKey="Mailhe M" first="Morgane" last="Mailhe">Morgane Mailhe</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Dudouet, Pierre" sort="Dudouet, Pierre" uniqKey="Dudouet P" first="Pierre" last="Dudouet">Pierre Dudouet</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Ormieres, Etienne" sort="Ormieres, Etienne" uniqKey="Ormieres E" first="Etienne" last="Ormières">Etienne Ormières</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Ailhaud, Lucie" sort="Ailhaud, Lucie" uniqKey="Ailhaud L" first="Lucie" last="Ailhaud">Lucie Ailhaud</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Parola, Philippe" sort="Parola, Philippe" uniqKey="Parola P" first="Philippe" last="Parola">Philippe Parola</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff3">Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Lagier, Jean Christophe" sort="Lagier, Jean Christophe" uniqKey="Lagier J" first="Jean-Christophe" last="Lagier">Jean-Christophe Lagier</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Brouqui, Philippe" sort="Brouqui, Philippe" uniqKey="Brouqui P" first="Philippe" last="Brouqui">Philippe Brouqui</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Zandotti, Christine" sort="Zandotti, Christine" uniqKey="Zandotti C" first="Christine" last="Zandotti">Christine Zandotti</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff4">Aix-Marseille Univ, APHM, Unité des Virus Émergents (UVE), IRD 190 - Inserm 1207, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Ninove, Laetitia" sort="Ninove, Laetitia" uniqKey="Ninove L" first="Laetitia" last="Ninove">Laetitia Ninove</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff4">Aix-Marseille Univ, APHM, Unité des Virus Émergents (UVE), IRD 190 - Inserm 1207, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Luciani, Lea" sort="Luciani, Lea" uniqKey="Luciani L" first="Léa" last="Luciani">Léa Luciani</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff4">Aix-Marseille Univ, APHM, Unité des Virus Émergents (UVE), IRD 190 - Inserm 1207, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Boschi, Celine" sort="Boschi, Celine" uniqKey="Boschi C" first="Céline" last="Boschi">Céline Boschi</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="La Scola, Bernard" sort="La Scola, Bernard" uniqKey="La Scola B" first="Bernard" last="La Scola">Bernard La Scola</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Raoult, Didier" sort="Raoult, Didier" uniqKey="Raoult D" first="Didier" last="Raoult">Didier Raoult</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Million, Matthieu" sort="Million, Matthieu" uniqKey="Million M" first="Matthieu" last="Million">Matthieu Million</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Colson, Philippe" sort="Colson, Philippe" uniqKey="Colson P" first="Philippe" last="Colson">Philippe Colson</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Gautret, Philippe" sort="Gautret, Philippe" uniqKey="Gautret P" first="Philippe" last="Gautret">Philippe Gautret</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff3">Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">32205269</idno><idno type="pmc">7102626</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7102626</idno><idno type="RBID">PMC:7102626</idno><idno type="doi">10.1016/j.tmaid.2020.101632</idno><date when="2020">2020</date><idno type="wicri:Area/Pmc/Corpus">001516</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">001516</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Rapid viral diagnosis and ambulatory management of suspected COVID-19 cases presenting at the infectious diseases referral hospital in Marseille, France, - January 31st to March 1st, 2020: A respiratory virus snapshot</title><author><name sortKey="Amrane, Sophie" sort="Amrane, Sophie" uniqKey="Amrane S" first="Sophie" last="Amrane">Sophie Amrane</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Tissot Dupont, Herve" sort="Tissot Dupont, Herve" uniqKey="Tissot Dupont H" first="Hervé" last="Tissot-Dupont">Hervé Tissot-Dupont</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Doudier, Barbara" sort="Doudier, Barbara" uniqKey="Doudier B" first="Barbara" last="Doudier">Barbara Doudier</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Eldin, Carole" sort="Eldin, Carole" uniqKey="Eldin C" first="Carole" last="Eldin">Carole Eldin</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff3">Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Hocquart, Marie" sort="Hocquart, Marie" uniqKey="Hocquart M" first="Marie" last="Hocquart">Marie Hocquart</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Mailhe, Morgane" sort="Mailhe, Morgane" uniqKey="Mailhe M" first="Morgane" last="Mailhe">Morgane Mailhe</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Dudouet, Pierre" sort="Dudouet, Pierre" uniqKey="Dudouet P" first="Pierre" last="Dudouet">Pierre Dudouet</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Ormieres, Etienne" sort="Ormieres, Etienne" uniqKey="Ormieres E" first="Etienne" last="Ormières">Etienne Ormières</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Ailhaud, Lucie" sort="Ailhaud, Lucie" uniqKey="Ailhaud L" first="Lucie" last="Ailhaud">Lucie Ailhaud</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Parola, Philippe" sort="Parola, Philippe" uniqKey="Parola P" first="Philippe" last="Parola">Philippe Parola</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff3">Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Lagier, Jean Christophe" sort="Lagier, Jean Christophe" uniqKey="Lagier J" first="Jean-Christophe" last="Lagier">Jean-Christophe Lagier</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Brouqui, Philippe" sort="Brouqui, Philippe" uniqKey="Brouqui P" first="Philippe" last="Brouqui">Philippe Brouqui</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Zandotti, Christine" sort="Zandotti, Christine" uniqKey="Zandotti C" first="Christine" last="Zandotti">Christine Zandotti</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff4">Aix-Marseille Univ, APHM, Unité des Virus Émergents (UVE), IRD 190 - Inserm 1207, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Ninove, Laetitia" sort="Ninove, Laetitia" uniqKey="Ninove L" first="Laetitia" last="Ninove">Laetitia Ninove</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff4">Aix-Marseille Univ, APHM, Unité des Virus Émergents (UVE), IRD 190 - Inserm 1207, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Luciani, Lea" sort="Luciani, Lea" uniqKey="Luciani L" first="Léa" last="Luciani">Léa Luciani</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff4">Aix-Marseille Univ, APHM, Unité des Virus Émergents (UVE), IRD 190 - Inserm 1207, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Boschi, Celine" sort="Boschi, Celine" uniqKey="Boschi C" first="Céline" last="Boschi">Céline Boschi</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="La Scola, Bernard" sort="La Scola, Bernard" uniqKey="La Scola B" first="Bernard" last="La Scola">Bernard La Scola</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Raoult, Didier" sort="Raoult, Didier" uniqKey="Raoult D" first="Didier" last="Raoult">Didier Raoult</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Million, Matthieu" sort="Million, Matthieu" uniqKey="Million M" first="Matthieu" last="Million">Matthieu Million</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Colson, Philippe" sort="Colson, Philippe" uniqKey="Colson P" first="Philippe" last="Colson">Philippe Colson</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff2">Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</nlm:aff></affiliation></author><author><name sortKey="Gautret, Philippe" sort="Gautret, Philippe" uniqKey="Gautret P" first="Philippe" last="Gautret">Philippe Gautret</name><affiliation><nlm:aff id="aff1">IHU-Méditerranée Infection, Marseille, France</nlm:aff></affiliation><affiliation><nlm:aff id="aff3">Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France</nlm:aff></affiliation></author></analytic><series><title level="j">Travel Medicine and Infectious Disease</title><idno type="ISSN">1477-8939</idno><idno type="eISSN">1873-0442</idno><imprint><date when="2020">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Background</title><p>Rapid virological diagnosis is needed to limit the length of isolation for suspected COVID-19 cases.</p></sec><sec><title>Method</title><p>We managed the first 280 patients suspected to have COVID-19 through a rapid care circuit and virological diagnosis in our infectious disease reference hospital in Marseille, France. Rapid viral detection was performed on sputum and nasopharyngeal samples.</p></sec><sec><title>Results</title><p>Over our study period, no SARS-CoV-2 was detected. Results were obtained within approximately 3 h of the arrival of patient samples at the laboratory. Other viral infections were identified in 49% of the patients, with most common pathogens being influenza A and B viruses, rhinovirus, metapneumovirus and common coronaviruses, notably HKU1 and NL63.</p></sec><sec><title>Conclusion</title><p>Early recognition of COVID-19 is critical to isolate confirmed cases and prevent further transmission. Early rule-out of COVID-19 allows public health containment measures to be adjusted by reducing the time spent in isolation.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Zhu, N" uniqKey="Zhu N">N. Zhu</name></author><author><name sortKey="Zhang, D" uniqKey="Zhang D">D. 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Travel Med Infect Dis</journal-id><journal-id journal-id-type="iso-abbrev">Travel Med Infect Dis</journal-id><journal-title-group><journal-title>Travel Medicine and Infectious Disease</journal-title></journal-title-group><issn pub-type="ppub">1477-8939</issn><issn pub-type="epub">1873-0442</issn><publisher><publisher-name>Elsevier Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">32205269</article-id><article-id pub-id-type="pmc">7102626</article-id><article-id pub-id-type="publisher-id">S1477-8939(20)30100-9</article-id><article-id pub-id-type="doi">10.1016/j.tmaid.2020.101632</article-id><article-id pub-id-type="publisher-id">101632</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Rapid viral diagnosis and ambulatory management of suspected COVID-19 cases presenting at the infectious diseases referral hospital in Marseille, France, - January 31st to March 1st, 2020: A respiratory virus snapshot</article-title></title-group><contrib-group><contrib contrib-type="author" id="au1"><name><surname>Amrane</surname><given-names>Sophie</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff2" ref-type="aff">b</xref><xref rid="fn1" ref-type="fn">1</xref></contrib><contrib contrib-type="author" id="au2"><name><surname>Tissot-Dupont</surname><given-names>Hervé</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff2" ref-type="aff">b</xref><xref rid="fn1" ref-type="fn">1</xref></contrib><contrib contrib-type="author" id="au3"><name><surname>Doudier</surname><given-names>Barbara</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="fn1" ref-type="fn">1</xref></contrib><contrib contrib-type="author" id="au4"><name><surname>Eldin</surname><given-names>Carole</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff3" ref-type="aff">c</xref></contrib><contrib contrib-type="author" id="au5"><name><surname>Hocquart</surname><given-names>Marie</given-names></name><xref rid="aff1" ref-type="aff">a</xref></contrib><contrib contrib-type="author" id="au6"><name><surname>Mailhe</surname><given-names>Morgane</given-names></name><xref rid="aff1" ref-type="aff">a</xref></contrib><contrib contrib-type="author" id="au7"><name><surname>Dudouet</surname><given-names>Pierre</given-names></name><xref rid="aff1" ref-type="aff">a</xref></contrib><contrib contrib-type="author" id="au8"><name><surname>Ormières</surname><given-names>Etienne</given-names></name><xref rid="aff1" ref-type="aff">a</xref></contrib><contrib contrib-type="author" id="au9"><name><surname>Ailhaud</surname><given-names>Lucie</given-names></name><xref rid="aff1" ref-type="aff">a</xref></contrib><contrib contrib-type="author" id="au10"><name><surname>Parola</surname><given-names>Philippe</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff3" ref-type="aff">c</xref></contrib><contrib contrib-type="author" id="au11"><name><surname>Lagier</surname><given-names>Jean-Christophe</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff2" ref-type="aff">b</xref></contrib><contrib contrib-type="author" id="au12"><name><surname>Brouqui</surname><given-names>Philippe</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff2" ref-type="aff">b</xref></contrib><contrib contrib-type="author" id="au13"><name><surname>Zandotti</surname><given-names>Christine</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff4" ref-type="aff">d</xref></contrib><contrib contrib-type="author" id="au14"><name><surname>Ninove</surname><given-names>Laetitia</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff4" ref-type="aff">d</xref></contrib><contrib contrib-type="author" id="au15"><name><surname>Luciani</surname><given-names>Léa</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff4" ref-type="aff">d</xref></contrib><contrib contrib-type="author" id="au16"><name><surname>Boschi</surname><given-names>Céline</given-names></name><xref rid="aff1" ref-type="aff">a</xref></contrib><contrib contrib-type="author" id="au17"><name><surname>La Scola</surname><given-names>Bernard</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff2" ref-type="aff">b</xref></contrib><contrib contrib-type="author" id="au18"><name><surname>Raoult</surname><given-names>Didier</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff2" ref-type="aff">b</xref></contrib><contrib contrib-type="author" id="au19"><name><surname>Million</surname><given-names>Matthieu</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff2" ref-type="aff">b</xref></contrib><contrib contrib-type="author" id="au20"><name><surname>Colson</surname><given-names>Philippe</given-names></name><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff2" ref-type="aff">b</xref></contrib><contrib contrib-type="author" id="au21"><name><surname>Gautret</surname><given-names>Philippe</given-names></name><email>philippe.gautret@ap-hm.fr</email><xref rid="aff1" ref-type="aff">a</xref><xref rid="aff3" ref-type="aff">c</xref><xref rid="cor1" ref-type="corresp">∗</xref></contrib></contrib-group><aff id="aff1"><label>a</label>IHU-Méditerranée Infection, Marseille, France</aff><aff id="aff2"><label>b</label>Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France</aff><aff id="aff3"><label>c</label>Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France</aff><aff id="aff4"><label>d</label>Aix-Marseille Univ, APHM, Unité des Virus Émergents (UVE), IRD 190 - Inserm 1207, Marseille, France</aff><author-notes><corresp id="cor1"><label>∗</label>Corresponding author. Aix Marseille Université, VITROME, IHU - Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005, Marseille, France. <email>philippe.gautret@ap-hm.fr</email></corresp><fn id="fn1"><label>1</label><p id="ntpara0010">equal work.</p></fn></author-notes><pub-date pub-type="pmc-release"><day>20</day><month>3</month><year>2020</year></pub-date><pmc-comment> PMC Release delay is 0 months and 0 days and was based on .</pmc-comment>
<pub-date pub-type="epub"><day>20</day><month>3</month><year>2020</year></pub-date><elocation-id>101632</elocation-id><history><date date-type="received"><day>8</day><month>3</month><year>2020</year></date><date date-type="rev-recd"><day>12</day><month>3</month><year>2020</year></date><date date-type="accepted"><day>14</day><month>3</month><year>2020</year></date></history><permissions><copyright-statement>© 2020 Elsevier Ltd. All rights reserved.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder>Elsevier Ltd</copyright-holder><license><license-p>Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.</license-p></license></permissions><abstract id="abs0010"><sec><title>Background</title><p>Rapid virological diagnosis is needed to limit the length of isolation for suspected COVID-19 cases.</p></sec><sec><title>Method</title><p>We managed the first 280 patients suspected to have COVID-19 through a rapid care circuit and virological diagnosis in our infectious disease reference hospital in Marseille, France. Rapid viral detection was performed on sputum and nasopharyngeal samples.</p></sec><sec><title>Results</title><p>Over our study period, no SARS-CoV-2 was detected. Results were obtained within approximately 3 h of the arrival of patient samples at the laboratory. Other viral infections were identified in 49% of the patients, with most common pathogens being influenza A and B viruses, rhinovirus, metapneumovirus and common coronaviruses, notably HKU1 and NL63.</p></sec><sec><title>Conclusion</title><p>Early recognition of COVID-19 is critical to isolate confirmed cases and prevent further transmission. Early rule-out of COVID-19 allows public health containment measures to be adjusted by reducing the time spent in isolation.</p></sec></abstract><kwd-group id="kwrds0010"><title>Keywords</title><kwd>SARS-CoV-2</kwd><kwd>COVID-19</kwd><kwd>Travel</kwd><kwd>Epidemic</kwd><kwd>Influenza</kwd><kwd>Coronaviruses</kwd></kwd-group></article-meta></front><body><sec id="sec1"><label>1</label><title>Introduction</title><p id="p0010">In December 2019, a novel coronavirus (now named SARS-CoV-2) was identified as a cause of a cluster of pneumonia cases in Wuhan, a city in the Hubei province of China [<xref rid="bib1" ref-type="bibr">1</xref>]. The number of cases rapidly rose. COVID-19 has spread globally within 60 days with focus areas in Asia, Europe and the Middle East [<xref rid="bib2" ref-type="bibr">2</xref>]. Epidemiological data indicate that human-to-human transmission is occurring [<xref rid="bib3" ref-type="bibr">3</xref>,<xref rid="bib4" ref-type="bibr">4</xref>]. As of March 1, 2020, 130 confirmed COVID-19 cases had been reported in France with three deaths [<xref rid="bib5" ref-type="bibr">5</xref>]. In this context, rapid virological diagnosis is valuable to reduce the duration of isolation for suspected cases and to reduce fear among individuals who have potentially ben in contact with them. It also allows for optimal management of any COVID-19 cases that are diagnosed. We aim to share our initial experiences in managing patients suspected of having COVID-19 through a rapid ambulatory care circuit and virological diagnosis in our infectious disease reference hospital in Marseille, France.</p></sec><sec id="sec2"><label>2</label><title>Methods</title><sec id="sec2.1"><label>2.1</label><title>Definition of suspected cases</title><p id="p0015">In France, the definition of a possible COVID-19 case changed during the study period [<xref rid="bib5" ref-type="bibr">5</xref>] (<xref rid="fig1" ref-type="fig">Fig. 1</xref>):<list list-type="simple" id="ulist0010"><list-item id="u0010"><label>-</label><p id="p0020">Between January 30, 2020 and February 3, 2020, COVID-19 cases were suspected on the basis of the association of an acute respiratory presentation, whatever the severity, with a body temperature ≥38 °C within 14 days of return from Hubei Province in the Peoples' Republic of China, and/or in the event of close contact with a confirmed case.</p></list-item><list-item id="u0015"><label>-</label><p id="p0025">Between 4 and February 20, 2020, the definition was extended to include the association of respiratory symptoms with a body temperature ≥38 °C or subjective fever, within 14 days of return from anywhere on the continental Peoples' Republic of China.</p></list-item><list-item id="u0020"><label>-</label><p id="p0030">From 21 to February 23, 2020, the definition was extended to include any respiratory symptoms (including isolated upper respiratory tract symptoms) and the risk zone was enlarged to the whole of China (including Hong Kong and Macao) and to Singapore.</p></list-item><list-item id="u0025"><label>-</label><p id="p0035">From 24 to February 26, 2020, South Korea and two regions of north Italy (Lombardy and Venetia) were added to the risk zone.</p></list-item><list-item id="u0030"><label>-</label><p id="p0040">On February 27, 2020, Iran, and another region of Italy (Emilia Romagna) were added to the risk zone. Additionally, any acute respiratory distress syndrome regardless of travel or close contact with a confirmed case was considered as a suspected case.</p></list-item><list-item id="u0035"><label>-</label><p id="p0045">From 28 February to March 1, 2020, the definition was enlarged to any unexplained pneumonia regardless of travel or close contact with a confirmed case.</p></list-item></list><fig id="fig1"><label>Fig. 1</label><caption><p>Definition of suspected COVID-19 cases overtime in France.</p></caption><alt-text id="alttext0010">Fig. 1</alt-text><graphic xlink:href="gr1_lrg"></graphic></fig></p></sec><sec id="sec2.2"><label>2.2</label><title>Clinical management</title><p id="p0050">The Mediterranean Infection University Hospital Institute is a 27,000 m<sup>2</sup> building that includes 75 hospital beds (single rooms), 25 of which are likely to be converted into three NSB3 modules with negative pressure, as well as a day-care hospital, an outpatient department with 14 consultation rooms and a travel clinic. Part of the outpatient department (five single rooms) can be isolated from the rest of the department and kept under negative pressure. If needed, this can be extended to the entire consultation ward. This Institute also includes five large NSB3 laboratories with a total area of 1200 m<sup>2</sup>, on four floors with diagnostic laboratories, research laboratories, and technological platforms [<xref rid="bib6" ref-type="bibr">6</xref>].</p><p id="p0055">An infectious disease specialist was available 24 h a day and seven days a week for telephonic counselling for emergency units and helped with screening cases in collaboration with regional public health services. This clinician referred suspected patients for SARS-CoV-2 testing. In our specific outpatient unit, a nurse and an infectious disease specialist managed patients who did not present severe symptoms and who arrived between 8am and 6.30pm. Others were hospitalised in the high-level isolation unit. Naso and oro-pharyngeal swab and/or sputum were obtained from each patient.</p></sec><sec id="sec2.3"><label>2.3</label><title>Laboratory tests</title><p id="p0060">Viral RNA was extracted from 200 μL of naso- and oro-pharyngeal swab fluid and/or sputum, using the EZ1 Virus Mini Kit v2.0 (Qiagen®, Courtaboeuf, France). For the detection of SARS-CoV-2 RNA we used two different RT-PCR systems with a hydrolysis probe and the LightCycler Multiplex RNA Virus Master kit (Roche Diagnostics®, Mannheim, Germany). The first system targets the envelope protein (E)-encoding gene and was previously described [<xref rid="bib7" ref-type="bibr">7</xref>] and uses a synthetic RNA positive control (supplied by the Charité virology institute - Universitätsmedizin Berlin, Berlin, Germany [<xref rid="bib8" ref-type="bibr">8</xref>]). The second system was designed in-house, targets the spike protein-encoding gene (forward primer: 5′-AAACTTGTGCCCTTTTGGTG-3'; reverse primer: 5′-TGCTGATTCTCTTCCTGTTCC-3'; probe: 5′-CGCCACCAGATTTGCATCTG-3′), and uses a synthetic RNA positive control ordered from Eurogentec® (Seraing, Belgium). In some cases, a real-time RT-PCR was carried out with the QuantiNova SYBR Green RT-PCR kit (Qiagen®) that targeted either the E gene with the same primers as above or previously described primers targeting the RNA-dependent RNA polymerase (RdRp)-encoding gene [<xref rid="bib7" ref-type="bibr">7</xref>] with a synthetic RNA positive control (Eurogentec). A phage RNA internal control [<xref rid="bib9" ref-type="bibr">9</xref>] was added to each clinical sample before extraction to ensure RNA extraction and PCR amplification were accurate. All experiments were performed on a LightCycler 480 instrument (Roche Diagnostics) by trained qualified technicians available who were available around the clock, either during routine working days and hours, or on an on-call basis. Concurrently, a multiplex molecular assay that detects respiratory pathogens was performed at the point-of-care laboratory [<xref rid="bib10" ref-type="bibr">10</xref>] with the Biofire FilmArray Respiratory panel 2 test (Biomérieux, Marcy-l'Etoile, France) or the FTD Respiratory pathogens 21 kit (Fast Track Diagnosis, Luxembourg).</p></sec></sec><sec id="sec3"><label>3</label><title>Results</title><p id="p0065">Between 31 January and March 1, 2020, 283 patients were admitted in our centre with suspected COVID-19. Three patients with missing travel data were excluded from our analysis. A marked increase in the daily number of patients was observed from February 24, 2020 (<xref rid="fig2" ref-type="fig">Fig. 2</xref>). Of these 280 patients, 60 (21.4%) had returned from Asia (including 31 returning from China), 210 (75%) had returned from Italy and 10 patients hadn't travelled outside France but were considered as contact cases. The M/F sex ratio was 1/1.2, and the mean age was 21 years (ranging from 1 to 84 years), including 42 children under the age of 18, of whom seven were under the age of three. 28 patients were hospitalised and 252 were treated as outpatients (<xref rid="tbl1" ref-type="table">Table 1</xref>).<fig id="fig2"><label>Fig. 2</label><caption><p>Numbers of patients by date of consultation.</p></caption><alt-text id="alttext0015">Fig. 2</alt-text><graphic xlink:href="gr2_lrg"></graphic></fig><table-wrap position="float" id="tbl1"><label>Table 1</label><caption><p>Characteristics of patients.</p></caption><alt-text id="alttext0025">Table 1</alt-text><table frame="hsides" rules="groups"><thead><tr><th></th><th>All patients n = 280</th><th>Patients returning from Italy n = 210</th><th>Patients returning from Asia n = 60</th></tr></thead><tbody><tr><td colspan="4" align="left"><bold>Demographic data</bold></td></tr><tr><td align="left">Mean age (years)</td><td align="left">21 (1-84)</td><td align="left">41 (1-84)</td><td align="left">36 (1-63)</td></tr><tr><td align="left">Sex ratio (M/F)</td><td align="left">1/1.2</td><td align="left">1/1.3</td><td align="left">1/1</td></tr><tr><td align="left">Place of exposure</td><td align="left">Asia n = 60 (21.4%)</td><td align="left">Lombardy, n = 78 (37%)</td><td align="left">Wuhan, n = 11 (18%)</td></tr><tr><td></td><td align="left">Italy, n = 210 (75%)</td><td align="left">Veneto, n = 114 (54%)</td><td align="left">Other part of China n = 20 (33%)</td></tr><tr><td></td><td align="left">France, n = 10 (3.6%)</td><td align="left">Emilia Romagna, n = 8 (4%)</td><td align="left">Other Asia, n = 29 (49%)<xref rid="tbl1fnb" ref-type="table-fn">b</xref></td></tr><tr><td></td><td></td><td align="left">Other regions, n = 10 (5%)<xref rid="tbl1fna" ref-type="table-fn">a</xref></td><td></td></tr><tr><td align="left">Dates of inclusion<hr></hr></td><td align="left">24/02/2020–01/03/2020<hr></hr></td><td align="left">24/02/2020–01/03/2020<hr></hr></td><td align="left">31/01/2020–01/03/2020<hr></hr></td></tr><tr><td colspan="4" align="left"><bold>Symptoms and in/out-patient status</bold></td></tr><tr><td align="left">Fever</td><td align="left">168 (60%)</td><td align="left">130 (61.9%)</td><td align="left">34 (56.7%)</td></tr><tr><td align="left">Cough</td><td align="left">189 (67.5%)</td><td align="left">146 (69.5%)</td><td align="left">37 (61.7%)</td></tr><tr><td align="left">Rhinitis</td><td align="left">151 (53.9%)</td><td align="left">122 (58.1%)</td><td align="left">27 (45%)</td></tr><tr><td align="left">Pharyngitis</td><td align="left">93 (33.2%)</td><td align="left">77 (36.7%)</td><td align="left">15 (25%)</td></tr><tr><td align="left">Asthenia and/or myalgia and/or headache</td><td align="left">52 (18.6%)</td><td align="left">35 (16.7%)</td><td align="left">14 (23.3%)</td></tr><tr><td align="left">Chest pain</td><td align="left">17 (6.1%)</td><td align="left">14 (6.7%)</td><td align="left">2 (3.3%)</td></tr><tr><td align="left">Pneumonia</td><td align="left">3 (1.1%)</td><td align="left">1 (0.5%)</td><td align="left">2 (3.3%)</td></tr><tr><td align="left">Out-patient</td><td align="left">252 (90%)</td><td align="left">201 (95.7%)</td><td align="left">42 (70%)</td></tr><tr><td align="left">In-patient</td><td align="left">28 (10%)</td><td align="left">9 (4.3%)</td><td align="left">18 (30%)</td></tr></tbody></table><table-wrap-foot><fn id="tbl1fna"><label>a</label><p id="ntpara0015">Liguria (n = 5), Tuscany (n = 3), Friuli Venezia Giulia (n = 2).</p></fn></table-wrap-foot><table-wrap-foot><fn id="tbl1fnb"><label>b</label><p id="ntpara0020">Singapore (n = 24), South Korea (n = 1), Thailand (n = 2), Taiwan (n = 2).</p></fn></table-wrap-foot></table-wrap></p><p id="p0070">Two-thirds of patients were febrile and most of their respiratory symptoms were suggestive of upper respiratory tract infections (<xref rid="tbl1" ref-type="table">Table 1</xref>).</p><p id="p0075">SARS-CoV-2 PCR assays were negative for all samples from all patients. As measured for the 22 first tests, results were obtained within an average of 175 min (ranging from 150 to 195 min) of patients’ samples arriving at the laboratory. Thereafter, results continued to be available in approximately 3 h. A viral diagnosis was obtained in 137/280 patients (48.9%) (<xref rid="tbl2" ref-type="table">Table 2</xref>). The most frequent viruses were influenza A virus (12.1% of all patients), rhinovirus (11.8%), influenza B virus (7.9%) and metapneumovirus (7.1%). Common coronaviruses (E229, OC43, NL63 and HKU1) were detected in 12.9% of patients. Twelve (4.3%) patients had viral co-infections (<xref rid="tbl2" ref-type="table">Table 2</xref>). Patterns of viral infection slightly differed between patients returning from Italy and those returning from China. Notably, patients returning from Italy were more likely to be infected with influenza B virus, metapneumovirus and coronavirus HKU1 compared to those returning from Asia (<xref rid="fig3" ref-type="fig">Fig. 3</xref>). By contrast, patients returning from Asia were more likely to be infected with rhinovirus/enterovirus and respiratory syncytial virus.<table-wrap position="float" id="tbl2"><label>Table 2</label><caption><p>Virological data for patients with suspected COVID-19.</p></caption><alt-text id="alttext0030">Table 2</alt-text><table frame="hsides" rules="groups"><thead><tr><th></th><th>All patients n = 280</th><th>Patients returning from Italy n = 210</th><th>Patients returning from Asia n = 60</th></tr></thead><tbody><tr><td align="left">Influenza A virus</td><td align="left">34 (12.1%)</td><td align="left">28 (13.3%)</td><td align="left">5 (8.3%)</td></tr><tr><td align="left">Influenza B virus</td><td align="left">22 (7.9%)</td><td align="left">19 (9.1%)</td><td align="left">1 (1.7%)</td></tr><tr><td align="left">Rhinovirus/Enterovirus</td><td align="left">33 (11.8%)</td><td align="left">25 (11.9%)</td><td align="left">8 (13.3%)</td></tr><tr><td align="left">Metapneumovirus</td><td align="left">20 (7.1%)</td><td align="left">19 (9.1%)</td><td align="left">1 (1.7%)</td></tr><tr><td align="left">Coronavirus HKU1</td><td align="left">19 (6.8%)</td><td align="left">18 (8.6%)</td><td align="left">1 (1.8%)</td></tr><tr><td align="left">Coronavirus NL63</td><td align="left">12 (4.3%)</td><td align="left">10 (4.8%)</td><td align="left">2 (3.3%)</td></tr><tr><td align="left">Coronavirus OC43</td><td align="left">3 (1.1%)</td><td align="left">2 (1%)</td><td align="left">1 (1.7%)</td></tr><tr><td align="left">Coronavirus E229</td><td align="left">2 (0.7%)</td><td align="left">2 (1%)</td><td align="left">0 (0%)</td></tr><tr><td align="left"><bold>SARS-CoV-2</bold></td><td align="left"><bold>0 (0%)</bold></td><td align="left"><bold>0 (0%)</bold></td><td align="left">0 (0%)</td></tr><tr><td align="left">Respiratory syncytial virus (RSV)</td><td align="left">6 (2.1%)</td><td align="left">3 (1.4%)</td><td align="left">3 (5%)</td></tr><tr><td align="left">Adenovirus (ADV)</td><td align="left">3 (1.1%)</td><td align="left">2 (1%)</td><td align="left">1 (1.7%)</td></tr><tr><td align="left">Bocavirus</td><td align="left">0 (0%)</td><td align="left">0 (0%)</td><td align="left">0 (0%)</td></tr><tr><td align="left">Parainfluenza viruses</td><td align="left">0 (0%)</td><td align="left">0 (0%)</td><td align="left">0 (0%)</td></tr><tr><td align="left">Negative for any viruses<hr></hr></td><td align="left">143 (51.1%)<hr></hr></td><td align="left">98 (46.7%)<hr></hr></td><td align="left">38 (63.3%)<hr></hr></td></tr><tr><td align="left"><bold>Mixed infections</bold></td><td align="left">n = 12</td><td align="left">n = 11</td><td align="left">n = 1</td></tr><tr><td align="left">Influenza A virus + Adenovirus</td><td align="left">1</td><td align="left">1</td><td align="left">1</td></tr><tr><td align="left">Influenza A virus + Coronavirus NL63</td><td align="left">1</td><td align="left">1</td><td align="left">0</td></tr><tr><td align="left">Influenza A virus + Influenza B virus + Rhinovirus/Enterovirus</td><td align="left">1</td><td align="left">1</td><td align="left">0</td></tr><tr><td align="left">Influenza B virus + Respiratory syncytial virus</td><td align="left">1</td><td align="left">1</td><td align="left">0</td></tr><tr><td align="left">Influenza B virus + Coronavirus HKU1</td><td align="left">2</td><td align="left">2</td><td align="left">0</td></tr><tr><td align="left">Rhinovirus/Enterovirus + Metapneumovirus</td><td align="left">4</td><td align="left">3</td><td align="left">0</td></tr><tr><td align="left">Rhinovirus/Enterovirus + Coronavirus HKU1</td><td align="left">2</td><td align="left">2</td><td align="left">0</td></tr></tbody></table></table-wrap><fig id="fig3"><label>Fig. 3</label><caption><p>Proportion of each virus among patients testing positive according to region of exposure.</p></caption><alt-text id="alttext0020">Fig. 3</alt-text><graphic xlink:href="gr3_lrg"></graphic></fig></p></sec><sec id="sec4"><label>4</label><title>Discussion</title><p id="p0080">Because COVID-19 infection symptoms range from unspecific mild respiratory symptoms to acute respiratory distress [<xref rid="bib3" ref-type="bibr">3</xref>] and because these symptoms are very similar to those of many seasonal viruses [<xref rid="bib11" ref-type="bibr">[11]</xref>, <xref rid="bib12" ref-type="bibr">[12]</xref>, <xref rid="bib13" ref-type="bibr">[13]</xref>], we implemented an outpatient rapid diagnosis for mildly affected patients which operated 10 h a day, seven days a week. This involved testing a broad spectrum of clinical presentations in potentially exposed persons [<xref rid="bib14" ref-type="bibr">14</xref>]. As in Italy, an infectious diseases clinician was key to patient triage [<xref rid="bib15" ref-type="bibr">15</xref>]. The genome sequence of SARS-CoV-2 enabled the rapid design and implementation of dedicated point-of-care real-time RT-PCR diagnostic tests [<xref rid="bib16" ref-type="bibr">16</xref>] in addition to other respiratory pathogens testing. The Mediterranean Infection University Hospital Institute is one of the nine French metropolitan hospital centres habilitated by the French Ministry of Health (MoH) to manage highly contagious patients. These centres were designated by the MoH to test patients suspected of COVID-19 at the early start of the epidemic (corresponding to the present study). Among these nine hospitals, our institute is the only one organized to manage large populations of out-patients in a dedicated isolated area, under negative pressure with laboratory facilities on site. The number of French centres designated for testing was then extended to 33 hospitals [<xref rid="bib5" ref-type="bibr">5</xref>]. Finally, on March 6th<sup>,</sup> 2020, the French MoH authorized private medical laboratories to perform nasopharyngeal sampling and testing for SARS-CoV-2. In France, such laboratories are managed by medical doctors or pharmacists. The clinical features of our 255 outpatients were compatible with the COVID-19 prodromal phase, as previously reported [<xref rid="bib3" ref-type="bibr">3</xref>,<xref rid="bib17" ref-type="bibr">17</xref>]. Similar to an earlier study of suspected cases of MERS-CoV [<xref rid="bib18" ref-type="bibr">18</xref>], no cases of SARS-CoV-2 was detected, whereas other common viral pathogens were detected in 49% of the patients. Our results in patients returning from Italy corroborate those of an Italian study conducted among 126 patients between 21 January and February 7, 2020 with regards to the predominance of influenza viruses among positive samples followed by rhinovirus [<xref rid="bib11" ref-type="bibr">11</xref>]. Timely identification of influenza virus infections allows for early treatment with antiviral therapy. Respiratory virus acquisition following travel is common. In previous studies conducted in pilgrims returning from the Grand Mahal (Senegal) or from the Hajj (Kingdom of Saudi Arabia) acquisition of rhinovirus and common coronaviruses was frequently observed [<xref rid="bib19" ref-type="bibr">19</xref>,<xref rid="bib20" ref-type="bibr">20</xref>]. In addition, we revealed evidence that metapneumovirus accounted also for a significant proportion of positive cases and found a higher proportion of common coronaviruses, notably HKU1 and NL63. This high proportion of common coronaviruses reflects the circulation of these viruses in the community, which are mainly responsible for mild upper respiratory tracts infections [<xref rid="bib21" ref-type="bibr">21</xref>]. Interestingly, we found several seasonal coronaviruses co-infections with influenza A or B viruses and with rhino/enteroviruses. Although such results cannot be extrapolated to SARS-CoV-2, this is indeed a question in healthcare setting where SARS-CoV-2 diagnosis is not available, whether the diagnosis of influenza can rule out the diagnosis of COVID-19. No cross-reaction between common coronaviruses or other common viruses and SARS-CoV-2 has been yet described, to our knowledge and the role of viral co-infections in the disease severity is still unknown. SARS CoV and metapneumovirus co-infections were documented in 2003 but did not correlate with disease severity [<xref rid="bib22" ref-type="bibr">22</xref>].</p></sec><sec id="sec5"><label>5</label><title>Conclusion</title><p id="p0085">Early recognition of COVID-19 is critical to isolate confirmed cases and prevent further transmission. In the United States, the CDC has decided to mobilise state and local departments in order to obtain collections of clinical and epidemiologic data that describe the characteristics of persons tested for COVID-19 and to decrease the risk of global dissemination [<xref rid="bib12" ref-type="bibr">12</xref>].</p><p id="p0090">We were able to make a prompt medical assessment and rapid biological diagnosis of COVID-19 suspected patients, leading to a much easier and fast management of patients. The short turnaround time for results and outpatient management makes it possible to reduce the time needed to introduce a specific treatment if necessary. Early rule-out of COVID-19 allows public health containment measures to be adjusted by reducing the time spent in isolation.</p><p id="p0095">NB. During the study period seven tests returned positive for SARS-CoV-2 from patients hospitalised in other regions of France whose samples were tested in our laboratory. Between 2 and 12 March, 41 new patients tested positive for SARS-CoV-2 in our hospital.</p></sec><sec id="sec6"><title>Funding</title><p id="p0100">None to declare.</p></sec><sec id="sec7"><title>CRediT authorship contribution statement</title><p id="p0105"><bold>Sophie Amrane:</bold> Writing - original draft, Investigation. <bold>Hervé Tissot-Dupont:</bold> Investigation, Data curation. <bold>Barbara Doudier:</bold> Writing - original draft. <bold>Carole Eldin:</bold> Writing - original draft. <bold>Marie Hocquart:</bold> Investigation. <bold>Morgane Mailhe:</bold> Investigation. <bold>Pierre Dudouet:</bold> Investigation. <bold>Etienne Ormières:</bold> Investigation. <bold>Lucie Ailhaud:</bold> Investigation. <bold>Philippe Parola:</bold> Conceptualization. <bold>Jean-Christophe Lagier:</bold> Conceptualization. <bold>Philippe Brouqui:</bold> Conceptualization. <bold>Christine Zandotti:</bold> Conceptualization. <bold>Laetitia Ninove:</bold> Conceptualization. <bold>Léa Luciani:</bold> Investigation. <bold>Céline Boschi:</bold> Investigation. <bold>Bernard La Scola:</bold> Conceptualization, Validation. <bold>Didier Raoult:</bold> Conceptualization, Supervision. <bold>Matthieu Million:</bold> Conceptualization, Investigation. <bold>Philippe Colson:</bold> Conceptualization, Validation, Writing - review & editing. <bold>Philippe Gautret:</bold> Conceptualization, Methodology, Validation, Writing - review & editing.</p></sec><sec sec-type="COI-statement"><title>Declaration of competing interest</title><p id="p0110">None to declare.</p></sec></body><back><ref-list id="cebib0010"><title>References</title><ref id="bib1"><label>1</label><element-citation publication-type="journal" id="sref1"><person-group person-group-type="author"><name><surname>Zhu</surname><given-names>N.</given-names></name><name><surname>Zhang</surname><given-names>D.</given-names></name><name><surname>Wang</surname><given-names>W.</given-names></name><name><surname>Li</surname><given-names>X.</given-names></name><name><surname>Yang</surname><given-names>B.</given-names></name><name><surname>Song</surname><given-names>J.</given-names></name></person-group><article-title>A novel coronavirus from patients with pneumonia in China, 2019</article-title><source>N Engl J Med</source><volume>382</volume><year>2020</year><fpage>727</fpage><lpage>733</lpage><pub-id pub-id-type="pmid">31978945</pub-id></element-citation></ref><ref id="bib2"><label>2</label><element-citation publication-type="other" id="sref2"><person-group person-group-type="author"><name><surname>WHO</surname></name></person-group><article-title>Situation report coronavirus</article-title><comment>n.d., (accessed March 11, 2020)</comment><ext-link ext-link-type="uri" xlink:href="https://www.who.int/emergencies/diseases/novel-coronavirus-2019/situation-reports/" id="intref0010">https://www.who.int/emergencies/diseases/novel-coronavirus-2019/situation-reports/</ext-link></element-citation></ref><ref id="bib3"><label>3</label><element-citation publication-type="journal" id="sref3"><person-group person-group-type="author"><name><surname>Huang</surname><given-names>C.</given-names></name><name><surname>Wang</surname><given-names>Y.</given-names></name><name><surname>Li</surname><given-names>X.</given-names></name><name><surname>Ren</surname><given-names>L.</given-names></name><name><surname>Zhao</surname><given-names>J.</given-names></name><name><surname>Hu</surname><given-names>Y.</given-names></name></person-group><article-title>Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China</article-title><source>Lancet</source><volume>395</volume><year>2020</year><fpage>497</fpage><lpage>506</lpage><pub-id pub-id-type="pmid">31986264</pub-id></element-citation></ref><ref id="bib4"><label>4</label><element-citation publication-type="journal" id="sref4"><person-group person-group-type="author"><name><surname>Phan</surname><given-names>L.T.</given-names></name><name><surname>Nguyen</surname><given-names>T.V.</given-names></name><name><surname>Luong</surname><given-names>Q.C.</given-names></name><name><surname>Nguyen</surname><given-names>T.V.</given-names></name><name><surname>Nguyen</surname><given-names>H.T.</given-names></name><name><surname>Le</surname><given-names>H.Q.</given-names></name></person-group><article-title>Importation and human-to-human transmission of a novel coronavirus in vietnam</article-title><source>N Engl J Med</source><volume>382</volume><year>2020</year><fpage>872</fpage><lpage>874</lpage><pub-id pub-id-type="pmid">31991079</pub-id></element-citation></ref><ref id="bib5"><label>5</label><mixed-citation publication-type="other" id="sref5">Santé publique France. 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id="gs2">National Research Agency under the program « Investissements d’avenir »</funding-source>, reference ANR-10-IAHU-03, the <funding-source id="gs3">Région Provence Alpes Côte d’Azur</funding-source> and <funding-source id="gs4">European funding FEDER PRIMI</funding-source>.</p></ack></back></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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