Evolution and pathogenicity of H6 avian influenza viruses isolated from Southern China during 2011 to 2017 in mice and chickens

Abstract H6 subtype avian influenza viruses spread widely in birds and pose potential threats to poultry and mammals, even to human beings. In this study, the evolution and pathogenicity of H6 AIVs isolated in live poultry markets from 2011 to 2017 were investigated. These H6 isolates were reassorta...

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Autores principales: Weishan Lin, Hongrui Cui, Qiaoyang Teng, Luzhao Li, Ying Shi, Xuesong Li, Jianmei Yang, Qinfang Liu, Junliang Deng, Zejun Li
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Publicado: Nature Portfolio 2020
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Acceso en línea:https://doaj.org/article/79082a0ae0324d5daa8c6b914ba9c909
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spelling oai:doaj.org-article:79082a0ae0324d5daa8c6b914ba9c9092021-12-02T15:10:19ZEvolution and pathogenicity of H6 avian influenza viruses isolated from Southern China during 2011 to 2017 in mice and chickens10.1038/s41598-020-76541-02045-2322https://doaj.org/article/79082a0ae0324d5daa8c6b914ba9c9092020-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-76541-0https://doaj.org/toc/2045-2322Abstract H6 subtype avian influenza viruses spread widely in birds and pose potential threats to poultry and mammals, even to human beings. In this study, the evolution and pathogenicity of H6 AIVs isolated in live poultry markets from 2011 to 2017 were investigated. These H6 isolates were reassortant with other subtypes of influenza virus with increasing genomic diversity. However, no predominant genotype was found during this period. All of the H6N2 and most of the H6N6 isolates replicated efficiently in lungs of inoculated mice without prior adaptation. All of the H6N2 and two H6N6 isolates replicated efficiently in nasal turbinates of inoculated mice, which suggested the H6N2 viruses were more adaptive to the upper respiratory tract of mice than the H6N6 viruses. One of H6N2 virus caused systemic infection in one out of three inoculated mice, which indicated that H6 avian influenza virus, especially the H6N2 viruses posed a potential threat to mammals. Five H6 strains selected from different genotypes caused no clinical signs to inoculated chickens, and their replication were limited in chickens since the viruses have been detected only from a few tissues or swabs at low titers. Our study strongly suggests that the H6 avian influenza virus isolated from live poultry markets pose potential threat to mammals.Weishan LinHongrui CuiQiaoyang TengLuzhao LiYing ShiXuesong LiJianmei YangQinfang LiuJunliang DengZejun LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Weishan Lin
Hongrui Cui
Qiaoyang Teng
Luzhao Li
Ying Shi
Xuesong Li
Jianmei Yang
Qinfang Liu
Junliang Deng
Zejun Li
Evolution and pathogenicity of H6 avian influenza viruses isolated from Southern China during 2011 to 2017 in mice and chickens
description Abstract H6 subtype avian influenza viruses spread widely in birds and pose potential threats to poultry and mammals, even to human beings. In this study, the evolution and pathogenicity of H6 AIVs isolated in live poultry markets from 2011 to 2017 were investigated. These H6 isolates were reassortant with other subtypes of influenza virus with increasing genomic diversity. However, no predominant genotype was found during this period. All of the H6N2 and most of the H6N6 isolates replicated efficiently in lungs of inoculated mice without prior adaptation. All of the H6N2 and two H6N6 isolates replicated efficiently in nasal turbinates of inoculated mice, which suggested the H6N2 viruses were more adaptive to the upper respiratory tract of mice than the H6N6 viruses. One of H6N2 virus caused systemic infection in one out of three inoculated mice, which indicated that H6 avian influenza virus, especially the H6N2 viruses posed a potential threat to mammals. Five H6 strains selected from different genotypes caused no clinical signs to inoculated chickens, and their replication were limited in chickens since the viruses have been detected only from a few tissues or swabs at low titers. Our study strongly suggests that the H6 avian influenza virus isolated from live poultry markets pose potential threat to mammals.
format article
author Weishan Lin
Hongrui Cui
Qiaoyang Teng
Luzhao Li
Ying Shi
Xuesong Li
Jianmei Yang
Qinfang Liu
Junliang Deng
Zejun Li
author_facet Weishan Lin
Hongrui Cui
Qiaoyang Teng
Luzhao Li
Ying Shi
Xuesong Li
Jianmei Yang
Qinfang Liu
Junliang Deng
Zejun Li
author_sort Weishan Lin
title Evolution and pathogenicity of H6 avian influenza viruses isolated from Southern China during 2011 to 2017 in mice and chickens
title_short Evolution and pathogenicity of H6 avian influenza viruses isolated from Southern China during 2011 to 2017 in mice and chickens
title_full Evolution and pathogenicity of H6 avian influenza viruses isolated from Southern China during 2011 to 2017 in mice and chickens
title_fullStr Evolution and pathogenicity of H6 avian influenza viruses isolated from Southern China during 2011 to 2017 in mice and chickens
title_full_unstemmed Evolution and pathogenicity of H6 avian influenza viruses isolated from Southern China during 2011 to 2017 in mice and chickens
title_sort evolution and pathogenicity of h6 avian influenza viruses isolated from southern china during 2011 to 2017 in mice and chickens
publisher Nature Portfolio
publishDate 2020
url https://doaj.org/article/79082a0ae0324d5daa8c6b914ba9c909
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