Molecular epidemiology and genetic characterization of influenza B virus in Lebanon during 2016-2018
Copyright © 2019 Elsevier B.V. All rights reserved..
BACKGROUND: Influenza B viruses are a major cause of serious acute respiratory infections in humans.
METHODS: Nasopharyngeal swabs were collected from subjects with influenza-like illness during October 2016-June 2018 and screened for influenza A and B. The hemagglutinin (HA) and neuraminidase (NA) genes of the Lebanese influenza B specimens were sequenced and phylogenetically compared with the vaccine strains and specimens from the Eastern Mediterranean Region and Europe.
RESULTS: Influenza A and B viruses co-circulated between October and May and peaked between January and March. During the 2016-2017 season, A/H3N2 (33.4%) and B/Yamagata (29.7%) were the predominantly circulating viruses followed by B/Victoria and A/H1N1pdm09 viruses. During the 2017-2018 season, A/H3N2 (31.5%) and A/H1Npdm09 (29.3%) were most prevalent with co-circulation of B/Yamagata and to a lesser extent B/Victoria viruses. The B/Yamagata specimens belonged to clade-3 while the B/Victoria belonged to clade-1A. None of the analyzed specimens had a mutation known to confer resistance to NA inhibitors (NAIs).
CONCLUSION: Multiple subtypes of influenza co-circulate each year in Lebanon with a peak between January and March. The trivalent vaccine included a B/Victoria strain which mismatched the B/Yamagata lineage that predominated during the study period, highlighting the importance of quadrivalent vaccines.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2019 |
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Erschienen: |
2019 |
Enthalten in: |
Zur Gesamtaufnahme - volume:75 |
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Enthalten in: |
Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases - 75(2019) vom: 15. Nov., Seite 103969 |
Sprache: |
Englisch |
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Beteiligte Personen: |
AlIbrahim, Malak [VerfasserIn] |
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Links: |
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Themen: |
Hemagglutinins |
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Anmerkungen: |
Date Completed 20.04.2020 Date Revised 20.04.2020 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1016/j.meegid.2019.103969 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM299380580 |
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500 | |a Citation Status MEDLINE | ||
520 | |a Copyright © 2019 Elsevier B.V. All rights reserved. | ||
520 | |a BACKGROUND: Influenza B viruses are a major cause of serious acute respiratory infections in humans | ||
520 | |a METHODS: Nasopharyngeal swabs were collected from subjects with influenza-like illness during October 2016-June 2018 and screened for influenza A and B. The hemagglutinin (HA) and neuraminidase (NA) genes of the Lebanese influenza B specimens were sequenced and phylogenetically compared with the vaccine strains and specimens from the Eastern Mediterranean Region and Europe | ||
520 | |a RESULTS: Influenza A and B viruses co-circulated between October and May and peaked between January and March. During the 2016-2017 season, A/H3N2 (33.4%) and B/Yamagata (29.7%) were the predominantly circulating viruses followed by B/Victoria and A/H1N1pdm09 viruses. During the 2017-2018 season, A/H3N2 (31.5%) and A/H1Npdm09 (29.3%) were most prevalent with co-circulation of B/Yamagata and to a lesser extent B/Victoria viruses. The B/Yamagata specimens belonged to clade-3 while the B/Victoria belonged to clade-1A. None of the analyzed specimens had a mutation known to confer resistance to NA inhibitors (NAIs) | ||
520 | |a CONCLUSION: Multiple subtypes of influenza co-circulate each year in Lebanon with a peak between January and March. The trivalent vaccine included a B/Victoria strain which mismatched the B/Yamagata lineage that predominated during the study period, highlighting the importance of quadrivalent vaccines | ||
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700 | 1 | |a Anan, Hind |e verfasserin |4 aut | |
700 | 1 | |a Sadaka, Christian |e verfasserin |4 aut | |
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700 | 1 | |a Andary, Rabih |e verfasserin |4 aut | |
700 | 1 | |a Dbaibo, Ghassan |e verfasserin |4 aut | |
700 | 1 | |a Zaraket, Hassan |e verfasserin |4 aut | |
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