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Erschienen in: Archives of Virology 2/2018

31.10.2017 | Original Article

Characterization of the neuraminidase genes from human influenza A viruses circulating in Iran from 2010 to 2015

verfasst von: Elham Moasser, Farida Behzadian, Afagh Moattari, Fatemeh Fotouhi, Hassan Zaraket

Erschienen in: Archives of Virology | Ausgabe 2/2018

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Abstract

Background

Characterization of influenza viruses is critical for detection of new emerging variants. Herein, we analyzed the genetic diversity and drug susceptibility of the neuraminidase gene (NAs) expressed by influenza A/H1N1pdm09 and A/H3N2 viruses circulating in Iran from 2010 to 2015.

Methods

We genetically analyzed the NAs of 38 influenza A/H1N1pdm09 and 35 A/H3N2 isolates.

Results

The Iranian A/H1N1pdm09 viruses belonged to seven genogroups/subgenogroups, with the dominant groups being genogroups 6B and 6C. The A/H3N2 isolates fell into six gneogroups/subgenogroups, with the dominant genogroups being 3C and 3C.2a. The most common mutations detected among the A/H1N1pdm09 viruses included N44S, V106I, N200S, and N248D. All H1N1pdm09 viruses were genetically susceptible to the NAIs. However, one A/H1N1pdm09 virus from the 2013–2014 season possessed an NA-S247N mutation, which reduces the susceptibility to oseltamivir. In case of H3N2, none of the analyzed Iranian strains carried a substitution that might affect its susceptibility to NAIs.

Conclusion

The ongoing evolution of influenza viruses and the detect of influenza viruses with reduced susceptibility to NAIs warrants continuous monitoring of the circulating strains.
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Metadaten
Titel
Characterization of the neuraminidase genes from human influenza A viruses circulating in Iran from 2010 to 2015
verfasst von
Elham Moasser
Farida Behzadian
Afagh Moattari
Fatemeh Fotouhi
Hassan Zaraket
Publikationsdatum
31.10.2017
Verlag
Springer Vienna
Erschienen in
Archives of Virology / Ausgabe 2/2018
Print ISSN: 0304-8608
Elektronische ISSN: 1432-8798
DOI
https://doi.org/10.1007/s00705-017-3603-y

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