Re-emergence of H5N8 highly pathogenic avian influenza virus in wild birds, China
In mid-November 2020, deaths of whooper swan were reported in the Yellow River Reservoir Area, China. In the present study, we describe the genetic characterizations and phylogenetic relationships of four clade 2.3.4.4b H5N8 highly avian influenza viruses (HPAIVs) identified from a sick whooper swan and environmental samples collected in the Yellow River Reservoir Area in late November 2020. They were closely related to recent H5Nx HPAIVs causing outbreaks in Eurasia in the 2020-2021 influenza season, suggesting these isolates might be imported into China via migratory birds. The newly identified H5N8 HPAIVs possessed Q226 and G228 (H3 numbering), indicating that they prefer to avian-like receptors. However, they had three mutations falling within known antigenic regions, including T144A in antigenic region A, T192I in antigenic region B, and N240D in antigenic region D. Our study highlights the risk of the rapid global spread of H5N8 HPAIVs and the necessity for continuous monitoring of avian influenza viruses in wild birds..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:10 |
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| Enthalten in: |
Emerging Microbes and Infections - 10(2021), 1, Seite 1819-1823 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Juan Li [VerfasserIn] |
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| Links: |
doi.org [kostenfrei] |
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| Themen: |
Clade 2.3.4.4b |
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| doi: |
10.1080/22221751.2021.1968317 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
DOAJ017950635 |
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| 520 | |a In mid-November 2020, deaths of whooper swan were reported in the Yellow River Reservoir Area, China. In the present study, we describe the genetic characterizations and phylogenetic relationships of four clade 2.3.4.4b H5N8 highly avian influenza viruses (HPAIVs) identified from a sick whooper swan and environmental samples collected in the Yellow River Reservoir Area in late November 2020. They were closely related to recent H5Nx HPAIVs causing outbreaks in Eurasia in the 2020-2021 influenza season, suggesting these isolates might be imported into China via migratory birds. The newly identified H5N8 HPAIVs possessed Q226 and G228 (H3 numbering), indicating that they prefer to avian-like receptors. However, they had three mutations falling within known antigenic regions, including T144A in antigenic region A, T192I in antigenic region B, and N240D in antigenic region D. Our study highlights the risk of the rapid global spread of H5N8 HPAIVs and the necessity for continuous monitoring of avian influenza viruses in wild birds. | ||
| 650 | 4 | |a Highly pathogenic avian influenza virus (HPAIV) | |
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| 700 | 0 | |a Jian Cao |e verfasserin |4 aut | |
| 700 | 0 | |a Yongchun Yang |e verfasserin |4 aut | |
| 700 | 0 | |a Hui Dong |e verfasserin |4 aut | |
| 700 | 0 | |a Yanan Cui |e verfasserin |4 aut | |
| 700 | 0 | |a Xue Yao |e verfasserin |4 aut | |
| 700 | 0 | |a Hong Zhou |e verfasserin |4 aut | |
| 700 | 0 | |a Lu Lu |e verfasserin |4 aut | |
| 700 | 0 | |a Samantha Lycett |e verfasserin |4 aut | |
| 700 | 0 | |a Xiaodu Wang |e verfasserin |4 aut | |
| 700 | 0 | |a Houhui Song |e verfasserin |4 aut | |
| 700 | 0 | |a Wenjun Liu |e verfasserin |4 aut | |
| 700 | 0 | |a George F. Gao |e verfasserin |4 aut | |
| 700 | 0 | |a Weifeng Shi |e verfasserin |4 aut | |
| 700 | 0 | |a Yuhai Bi |e verfasserin |4 aut | |
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