Middle East respiratory syndrome coronavirus (MERS-CoV) viral shedding in the respiratory tract: an observational analysis with infection control implications
Identifieur interne : 001017 ( Pmc/Checkpoint ); précédent : 001016; suivant : 001018Middle East respiratory syndrome coronavirus (MERS-CoV) viral shedding in the respiratory tract: an observational analysis with infection control implications
Auteurs : Ziad A. Memish ; Abdullah M. Assiri ; Jaffar A. Al-Tawfiq [États-Unis]Source :
- International Journal of Infectious Diseases [ 1201-9712 ] ; 2014.
Abstract
Since the first description of Middle East respiratory syndrome coronavirus (MERS-CoV), it has not been known how long patients shed the virus in respiratory secretions. Thus, we analyzed the available data on time to negative MERS-CoV test in patients with confirmed MERS-CoV infection and asymptomatic positive contacts.
Data from repeated laboratory testing of respiratory samples received at the Saudi Arabian virology reference laboratory in Jeddah, Kingdom of Saudi Arabia from September 1, 2012 to September 31, 2013 were recorded. A real-time RT-PCR test for MERS-CoV was used. Data were analyzed by origin of sample, sample type, and MERS-CoV PCR test results.
Twenty-six individuals (13 patients and 13 contacts) had repeated testing done until a negative test was obtained. Most samples from MERS-CoV cases were tracheal aspirate/sputum (
Contacts cleared MERS-CoV earlier than ill patients. This finding could be related to the types of sample as well as the types of patient studied. More ill patients with significant comorbidities shed the virus for a significantly longer time. The results of this study could have critical implications for infection control guidance and its application in healthcare facilities handling positive cases.
Url:
DOI: 10.1016/j.ijid.2014.10.002
PubMed: 25448335
PubMed Central: 7110713
Affiliations:
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Middle East respiratory syndrome coronavirus (MERS-CoV) viral shedding in the respiratory tract: an observational analysis with infection control implications</title>
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<author><name sortKey="Al Tawfiq, Jaffar A" sort="Al Tawfiq, Jaffar A" uniqKey="Al Tawfiq J" first="Jaffar A." last="Al-Tawfiq">Jaffar A. Al-Tawfiq</name>
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<front><div type="abstract" xml:lang="en"><title>Summary</title>
<sec><title>Background</title>
<p>Since the first description of Middle East respiratory syndrome coronavirus (MERS-CoV), it has not been known how long patients shed the virus in respiratory secretions. Thus, we analyzed the available data on time to negative MERS-CoV test in patients with confirmed MERS-CoV infection and asymptomatic positive contacts.</p>
</sec>
<sec><title>Methods</title>
<p>Data from repeated laboratory testing of respiratory samples received at the Saudi Arabian virology reference laboratory in Jeddah, Kingdom of Saudi Arabia from September 1, 2012 to September 31, 2013 were recorded. A real-time RT-PCR test for MERS-CoV was used. Data were analyzed by origin of sample, sample type, and MERS-CoV PCR test results.</p>
</sec>
<sec><title>Results</title>
<p>Twenty-six individuals (13 patients and 13 contacts) had repeated testing done until a negative test was obtained. Most samples from MERS-CoV cases were tracheal aspirate/sputum (<italic>p</italic>
= 0.0006) and most samples from contacts were nose and throat swabs (<italic>p</italic>
= 0.0002). Kaplan–Meier curve analysis showed that contacts cleared the virus at a much earlier time than patients. On day 12, 30% of contacts and 76% of cases were still positive for MERS-CoV by PCR.</p>
</sec>
<sec><title>Conclusions</title>
<p>Contacts cleared MERS-CoV earlier than ill patients. This finding could be related to the types of sample as well as the types of patient studied. More ill patients with significant comorbidities shed the virus for a significantly longer time. The results of this study could have critical implications for infection control guidance and its application in healthcare facilities handling positive cases.</p>
</sec>
</div>
</front>
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<pmc article-type="brief-report"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Int J Infect Dis</journal-id>
<journal-id journal-id-type="iso-abbrev">Int. J. Infect. Dis</journal-id>
<journal-title-group><journal-title>International Journal of Infectious Diseases</journal-title>
</journal-title-group>
<issn pub-type="ppub">1201-9712</issn>
<issn pub-type="epub">1878-3511</issn>
<publisher><publisher-name>The Authors. Published by Elsevier Ltd.</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">25448335</article-id>
<article-id pub-id-type="pmc">7110713</article-id>
<article-id pub-id-type="publisher-id">S1201-9712(14)01644-0</article-id>
<article-id pub-id-type="doi">10.1016/j.ijid.2014.10.002</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Middle East respiratory syndrome coronavirus (MERS-CoV) viral shedding in the respiratory tract: an observational analysis with infection control implications</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" id="aut0005"><name><surname>Memish</surname>
<given-names>Ziad A.</given-names>
</name>
<email>zmemish@yahoo.com</email>
<xref rid="aff0005" ref-type="aff">a</xref>
<xref rid="cor0005" ref-type="corresp">⁎</xref>
</contrib>
<contrib contrib-type="author" id="aut0010"><name><surname>Assiri</surname>
<given-names>Abdullah M.</given-names>
</name>
<xref rid="aff0010" ref-type="aff">b</xref>
</contrib>
<contrib contrib-type="author" id="aut0015"><name><surname>Al-Tawfiq</surname>
<given-names>Jaffar A.</given-names>
</name>
<xref rid="aff0015" ref-type="aff">c</xref>
<xref rid="aff0020" ref-type="aff">d</xref>
</contrib>
</contrib-group>
<aff id="aff0005"><label>a</label>
College of Medicine, Alfaisal University, Ministry of Health, Riyadh 11176, Kingdom of Saudi Arabia</aff>
<aff id="aff0010"><label>b</label>
Ministry of Health, Riyadh, Kingdom of Saudi Arabia</aff>
<aff id="aff0015"><label>c</label>
Johns Hopkins Aramco Healthcare, Dhahran, Kingdom of Saudi Arabia</aff>
<aff id="aff0020"><label>d</label>
Indiana University School of Medicine, Indianapolis, Indiana, USA</aff>
<author-notes><corresp id="cor0005"><label>⁎</label>
Corresponding author. <email>zmemish@yahoo.com</email>
</corresp>
</author-notes>
<pub-date pub-type="pmc-release"><day>24</day>
<month>10</month>
<year>2014</year>
</pub-date>
<pmc-comment> PMC Release delay is 0 months and 0 days and was based on .</pmc-comment>
<pub-date pub-type="ppub"><month>12</month>
<year>2014</year>
</pub-date>
<pub-date pub-type="epub"><day>24</day>
<month>10</month>
<year>2014</year>
</pub-date>
<volume>29</volume>
<fpage>307</fpage>
<lpage>308</lpage>
<history><date date-type="received"><day>20</day>
<month>10</month>
<year>2014</year>
</date>
<date date-type="accepted"><day>20</day>
<month>10</month>
<year>2014</year>
</date>
</history>
<permissions><copyright-statement>© 2014 The Authors</copyright-statement>
<copyright-year>2014</copyright-year>
<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="abs0005"><title>Summary</title>
<sec><title>Background</title>
<p>Since the first description of Middle East respiratory syndrome coronavirus (MERS-CoV), it has not been known how long patients shed the virus in respiratory secretions. Thus, we analyzed the available data on time to negative MERS-CoV test in patients with confirmed MERS-CoV infection and asymptomatic positive contacts.</p>
</sec>
<sec><title>Methods</title>
<p>Data from repeated laboratory testing of respiratory samples received at the Saudi Arabian virology reference laboratory in Jeddah, Kingdom of Saudi Arabia from September 1, 2012 to September 31, 2013 were recorded. A real-time RT-PCR test for MERS-CoV was used. Data were analyzed by origin of sample, sample type, and MERS-CoV PCR test results.</p>
</sec>
<sec><title>Results</title>
<p>Twenty-six individuals (13 patients and 13 contacts) had repeated testing done until a negative test was obtained. Most samples from MERS-CoV cases were tracheal aspirate/sputum (<italic>p</italic>
= 0.0006) and most samples from contacts were nose and throat swabs (<italic>p</italic>
= 0.0002). Kaplan–Meier curve analysis showed that contacts cleared the virus at a much earlier time than patients. On day 12, 30% of contacts and 76% of cases were still positive for MERS-CoV by PCR.</p>
</sec>
<sec><title>Conclusions</title>
<p>Contacts cleared MERS-CoV earlier than ill patients. This finding could be related to the types of sample as well as the types of patient studied. More ill patients with significant comorbidities shed the virus for a significantly longer time. The results of this study could have critical implications for infection control guidance and its application in healthcare facilities handling positive cases.</p>
</sec>
</abstract>
<kwd-group id="kwd0005"><title>Keywords</title>
<kwd>Middle East</kwd>
<kwd>MERS-CoV</kwd>
<kwd>RT-PCR</kwd>
<kwd>Coronavirus</kwd>
<kwd>Viral kinetics</kwd>
</kwd-group>
</article-meta>
<notes><p id="misc0005"><bold>Corresponding Editor:</bold>
Eskild Petersen, Aarhus, Denmark</p>
</notes>
</front>
</pmc>
<affiliations><list><country><li>États-Unis</li>
</country>
<region><li>Indiana</li>
</region>
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<tree><noCountry><name sortKey="Assiri, Abdullah M" sort="Assiri, Abdullah M" uniqKey="Assiri A" first="Abdullah M." last="Assiri">Abdullah M. Assiri</name>
<name sortKey="Memish, Ziad A" sort="Memish, Ziad A" uniqKey="Memish Z" first="Ziad A." last="Memish">Ziad A. Memish</name>
</noCountry>
<country name="États-Unis"><region name="Indiana"><name sortKey="Al Tawfiq, Jaffar A" sort="Al Tawfiq, Jaffar A" uniqKey="Al Tawfiq J" first="Jaffar A." last="Al-Tawfiq">Jaffar A. Al-Tawfiq</name>
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