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Influenza A Virus on Oceanic Islands: Host and Viral Diversity in Seabirds in the Western Indian Ocean

Ducks and seabirds are natural hosts for influenza A viruses (IAV). On oceanic islands, the ecology of IAV could be affected by the relative diversity, abundance and density of seabirds and ducks. Seabirds are the most abundant and widespread avifauna in the Western Indian Ocean and, in this region,...

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Autores principales: Lebarbenchon, Camille, Jaeger, Audrey, Feare, Chris, Bastien, Matthieu, Dietrich, Muriel, Larose, Christine, Lagadec, Erwan, Rocamora, Gérard, Shah, Nirmal, Pascalis, Hervé, Boulinier, Thierry, Le Corre, Matthieu, Stallknecht, David E., Dellagi, Koussay
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4440776/
https://www.ncbi.nlm.nih.gov/pubmed/25996394
http://dx.doi.org/10.1371/journal.ppat.1004925
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author Lebarbenchon, Camille
Jaeger, Audrey
Feare, Chris
Bastien, Matthieu
Dietrich, Muriel
Larose, Christine
Lagadec, Erwan
Rocamora, Gérard
Shah, Nirmal
Pascalis, Hervé
Boulinier, Thierry
Le Corre, Matthieu
Stallknecht, David E.
Dellagi, Koussay
author_facet Lebarbenchon, Camille
Jaeger, Audrey
Feare, Chris
Bastien, Matthieu
Dietrich, Muriel
Larose, Christine
Lagadec, Erwan
Rocamora, Gérard
Shah, Nirmal
Pascalis, Hervé
Boulinier, Thierry
Le Corre, Matthieu
Stallknecht, David E.
Dellagi, Koussay
author_sort Lebarbenchon, Camille
collection PubMed
description Ducks and seabirds are natural hosts for influenza A viruses (IAV). On oceanic islands, the ecology of IAV could be affected by the relative diversity, abundance and density of seabirds and ducks. Seabirds are the most abundant and widespread avifauna in the Western Indian Ocean and, in this region, oceanic islands represent major breeding sites for a large diversity of potential IAV host species. Based on serological assays, we assessed the host range of IAV and the virus subtype diversity in terns of the islands of the Western Indian Ocean. We further investigated the spatial variation in virus transmission patterns between islands and identified the origin of circulating viruses using a molecular approach. Our findings indicate that terns represent a major host for IAV on oceanic islands, not only for seabird-related virus subtypes such as H16, but also for those commonly isolated in wild and domestic ducks (H3, H6, H9, H12 subtypes). We also identified strong species-associated variation in virus exposure that may be associated to differences in the ecology and behaviour of terns. We discuss the role of tern migrations in the spread of viruses to and between oceanic islands, in particular for the H2 and H9 IAV subtypes.
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spelling pubmed-44407762015-05-29 Influenza A Virus on Oceanic Islands: Host and Viral Diversity in Seabirds in the Western Indian Ocean Lebarbenchon, Camille Jaeger, Audrey Feare, Chris Bastien, Matthieu Dietrich, Muriel Larose, Christine Lagadec, Erwan Rocamora, Gérard Shah, Nirmal Pascalis, Hervé Boulinier, Thierry Le Corre, Matthieu Stallknecht, David E. Dellagi, Koussay PLoS Pathog Research Article Ducks and seabirds are natural hosts for influenza A viruses (IAV). On oceanic islands, the ecology of IAV could be affected by the relative diversity, abundance and density of seabirds and ducks. Seabirds are the most abundant and widespread avifauna in the Western Indian Ocean and, in this region, oceanic islands represent major breeding sites for a large diversity of potential IAV host species. Based on serological assays, we assessed the host range of IAV and the virus subtype diversity in terns of the islands of the Western Indian Ocean. We further investigated the spatial variation in virus transmission patterns between islands and identified the origin of circulating viruses using a molecular approach. Our findings indicate that terns represent a major host for IAV on oceanic islands, not only for seabird-related virus subtypes such as H16, but also for those commonly isolated in wild and domestic ducks (H3, H6, H9, H12 subtypes). We also identified strong species-associated variation in virus exposure that may be associated to differences in the ecology and behaviour of terns. We discuss the role of tern migrations in the spread of viruses to and between oceanic islands, in particular for the H2 and H9 IAV subtypes. Public Library of Science 2015-05-21 /pmc/articles/PMC4440776/ /pubmed/25996394 http://dx.doi.org/10.1371/journal.ppat.1004925 Text en © 2015 Lebarbenchon et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Lebarbenchon, Camille
Jaeger, Audrey
Feare, Chris
Bastien, Matthieu
Dietrich, Muriel
Larose, Christine
Lagadec, Erwan
Rocamora, Gérard
Shah, Nirmal
Pascalis, Hervé
Boulinier, Thierry
Le Corre, Matthieu
Stallknecht, David E.
Dellagi, Koussay
Influenza A Virus on Oceanic Islands: Host and Viral Diversity in Seabirds in the Western Indian Ocean
title Influenza A Virus on Oceanic Islands: Host and Viral Diversity in Seabirds in the Western Indian Ocean
title_full Influenza A Virus on Oceanic Islands: Host and Viral Diversity in Seabirds in the Western Indian Ocean
title_fullStr Influenza A Virus on Oceanic Islands: Host and Viral Diversity in Seabirds in the Western Indian Ocean
title_full_unstemmed Influenza A Virus on Oceanic Islands: Host and Viral Diversity in Seabirds in the Western Indian Ocean
title_short Influenza A Virus on Oceanic Islands: Host and Viral Diversity in Seabirds in the Western Indian Ocean
title_sort influenza a virus on oceanic islands: host and viral diversity in seabirds in the western indian ocean
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4440776/
https://www.ncbi.nlm.nih.gov/pubmed/25996394
http://dx.doi.org/10.1371/journal.ppat.1004925
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