Surveillance for antiviral resistance among influenza viruses circulating in Algeria during five consecutive influenza seasons (2009-2014)
Identifieur interne : 000133 ( Main/Exploration ); précédent : 000132; suivant : 000134Surveillance for antiviral resistance among influenza viruses circulating in Algeria during five consecutive influenza seasons (2009-2014)
Auteurs : Assia Ait-Aissa ; Fawzi Derrar [France] ; Djouhar Hannoun ; El Alia Gradi ; Dino Scaravelli ; Zihad Bouslama [Algérie]Source :
- Journal of Medical Virology [ 0146-6615 ] ; 2018.
Abstract
Influenza season 2007/2008 was marked by a worldwide emergence of oseltamivir-resistant A(H1N1) viruses possessing a mutation in the neuraminidase gene causing His-to-Tyr substitution at amino acid position 275 (H275Y). These strains were isolated in Algeria where 30% of seasonal A(H1N1) viruses harbored the H275Y mutation. Emergence of resistant viruses to currently approved antiviral drug determined the need for antiviral susceptibility monitoring in Algeria especially that oseltamivir is currently used in hospitals of some provinces of the country for treatment of influenza in populations at risk. The aim of the present study is to investigate the sensitivity of circulating influenza viruses in Algeria to oseltamivir. We present 5-year local surveillance results from 2009/2010 influenza season to 2013/2014 influenza season. We tested the sensitivity to oseltamivir of 387 human influenza A and B viruses isolated in Algeria. Determination of IC50 values were performed using the fluorogenic MUNANA substrate. To detect the H275Y mutation in the neuraminidase of the A(H1N1) strains we performed a real-time RT-PCR allelic discrimination analysis. The obtained results showed that all influenza A(H1N1)pdm09, A(H3N2), and B viruses studied remained susceptible to oseltamivir. This is the first study on influenza antiviral susceptibility surveillance in Algeria. Obtained results allow establishing a baseline data for future studies on antiviral resistance emergence worldwide. Our report highlights the importance of a continued and active monitoring of circulating viruses in Algeria for strengthens collaboration within the Global Influenza Surveillance and Response System.
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DOI: 10.1002/jmv.25029
Affiliations:
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Annaba [Annaba]</orgName> <orgName type="acronym">UBMA</orgName> <desc> <address> <addrLine>BP 12, 23000, Annaba</addrLine> <country key="DZ"></country> </address> </desc> </org></tutelle></tutelles></hal:affiliation><country>Algérie</country></affiliation></author></analytic><idno type="DOI">10.1002/jmv.25029</idno><series><title level="j">Journal of Medical Virology</title><idno type="ISSN">0146-6615</idno><imprint><date type="datePub">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"> <p>Influenza season 2007/2008 was marked by a worldwide emergence of oseltamivir-resistant A(H1N1) viruses possessing a mutation in the neuraminidase gene causing His-to-Tyr substitution at amino acid position 275 (H275Y). These strains were isolated in Algeria where 30% of seasonal A(H1N1) viruses harbored the H275Y mutation. Emergence of resistant viruses to currently approved antiviral drug determined the need for antiviral susceptibility monitoring in Algeria especially that oseltamivir is currently used in hospitals of some provinces of the country for treatment of influenza in populations at risk. The aim of the present study is to investigate the sensitivity of circulating influenza viruses in Algeria to oseltamivir. We present 5-year local surveillance results from 2009/2010 influenza season to 2013/2014 influenza season. We tested the sensitivity to oseltamivir of 387 human influenza A and B viruses isolated in Algeria. Determination of IC50 values were performed using the fluorogenic MUNANA substrate. To detect the H275Y mutation in the neuraminidase of the A(H1N1) strains we performed a real-time RT-PCR allelic discrimination analysis. The obtained results showed that all influenza A(H1N1)pdm09, A(H3N2), and B viruses studied remained susceptible to oseltamivir. This is the first study on influenza antiviral susceptibility surveillance in Algeria. Obtained results allow establishing a baseline data for future studies on antiviral resistance emergence worldwide. Our report highlights the importance of a continued and active monitoring of circulating viruses in Algeria for strengthens collaboration within the Global Influenza Surveillance and Response System.</p> </div></front></TEI><affiliations><list><country><li>Algérie</li><li>France</li></country><region><li>Provence-Alpes-Côte d'Azur</li></region><settlement><li>Marseille</li></settlement><orgName><li>Université d'Aix-Marseille</li></orgName></list><tree><noCountry><name sortKey="Ait Aissa, Assia" sort="Ait Aissa, Assia" uniqKey="Ait Aissa A" first="Assia" last="Ait-Aissa">Assia Ait-Aissa</name><name sortKey="Gradi, El Alia" sort="Gradi, El Alia" uniqKey="Gradi E" first="El Alia" last="Gradi">El Alia Gradi</name><name sortKey="Hannoun, Djouhar" sort="Hannoun, Djouhar" uniqKey="Hannoun D" first="Djouhar" last="Hannoun">Djouhar Hannoun</name><name sortKey="Scaravelli, Dino" sort="Scaravelli, Dino" uniqKey="Scaravelli D" first="Dino" last="Scaravelli">Dino Scaravelli</name></noCountry><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Derrar, Fawzi" sort="Derrar, Fawzi" uniqKey="Derrar F" first="Fawzi" last="Derrar">Fawzi Derrar</name></region></country><country name="Algérie"><noRegion><name sortKey="Bouslama, Zihad" sort="Bouslama, Zihad" uniqKey="Bouslama Z" first="Zihad" last="Bouslama">Zihad Bouslama</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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