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Abstract

In 2017, an H7N8 avian influenza virus (AIV) was isolated from a domestic duck from a farm in Central China. Sequences analysis showed that this strain received its genes from H7, H1, H2, H3, H5, and H6 AIVs of domestic poultry and wild birds in Asia. It exhibited low pathogenicity in chickens and...

Author(s)
Peng Cheng; Hou GuangYu; Li JinPing; Cheng ShanJu; Wang SuChun; Yi Ying; Chen JiMing; Jiang WenMing
Publisher
Springer, Dordrecht, Netherlands
Citation
Virus Genes, 2019, 55, 3, pp 411-414
Abstract

Low pathogenicity avian influenza viruses (LPAIVs) are generally asymptomatic in their natural avian hosts. LPAIVs can evolve into highly pathogenic forms, which can affect avian and human populations with devastating consequences. The switch to highly pathogenic avian influenza virus (HPAIV) from...

Author(s)
Luczo, J. M.; Tachedjian, M.; Harper, J. A.; Payne, J. S.; Butler, J. M.; Sapats, S. I.; Lowther, S. L.; Michalski, W. P.; Stambas, J.; Bingham, J.
Publisher
Nature Publishing Group, London, UK
Citation
Scientific Reports, 2018, 8, 1, pp 11518
Abstract

Avian influenza viruses (AIV) are classified into 16 hemagglutinin (HA; H1-H16) and 9 neuraminidase (NA; N1-N9) subtypes. All AIV are low pathogenic (LP) in birds, but subtypes H5 and H7 AIV can evolve into highly pathogenic (HP) forms. In the last two decades evolution of HPAIV H7 from LPAIV has...

Author(s)
Scheibner, D.; Ulrich, R.; Fatola, O. I.; Graaf, A.; Gischke, M.; Salaheldin, A. H.; Harder, T. C.; Veits, J.; Mettenleiter, T. C.; Abdelwhab, E. M.
Publisher
Nature Publishing Group, London, UK
Citation
Scientific Reports, 2019, 9, 1, pp 11556
Abstract

Since 2014, H5 highly pathogenic avian influenza viruses (HPAIVs) from clade 2.3.4.4 have been persistently circulating in Southern China. This has caused huge losses in the poultry industry. In this study, we analysed the genetic characteristics of seven H5N6 HPAIVs of clade 2.3.4.4 that infected...

Author(s)
Qu NanNan; Zhao BingBing; Chen ZuXian; He ZhuoLiang; Li WeiQiang; Liu ZhiTing; Wang Xia; Huang JianNi; Zhang You; He WanTing; Sun Jie; Qin ZhiFeng; Liao Ming; Jiao PeiRong
Publisher
Wiley, Berlin, Germany
Citation
Transboundary and Emerging Diseases, 2019, 66, 6, pp 2411-2425
Abstract

Background: Since 2008, avian influenza surveillance in poultry-related environments has been conducted annually in China. Samples have been collected from environments including live poultry markets, wild bird habitats, slaughterhouses, and poultry farms. Multiple subtypes of avian influenza virus ...

Author(s)
Zhang Ye; Dong Jie; Bo Hong; Dong LiBo; Zou ShuMei; Li XiYan; Shu YueLong; Wang DaYan
Publisher
BioMed Central Ltd, London, UK
Citation
BMC Infectious Diseases, 2019, 19, 458, pp (22 May 2019)
Abstract

During 2012-2015, six H5N1 avian influenza viruses were isolated from domestic birds and the environment around Qinghai Lake. Phylogenetic analysis of HA genes revealed that A/chicken/Gansu/XG2/2012 (CK/GS/XG2/12) belonged to clade 2.3.2.1a, while A/environment/Qinghai/1/2013 (EN/QH/1/13),...

Author(s)
Yang JiaYun; Wang ZhengXiang; Du YingYing; Jia YaNe; Wang Liang; Xu Shuai; Zhu QiYun
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2019, 235, pp 234-242
Abstract

Clade 2.3.4.4 of H5N6 subtype Avian Influenza Viruses (AIVs) has become dominant clade in South-East Asia. So far, a total of 16 cases of human infection, including 6 deaths, have been confirmed since 2014. In this study, we systematically investigated the genetic evolution and biological...

Author(s)
Sun WenQiang; Li JiaXin; Hu Jiao; Jiang DaXiu; Xing ChaoNan; Zhan TianSong; Liu XiuFan
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2018, 219, pp 200-211
Abstract

Virulence of highly pathogenic avian influenza viruses (AIV) is determined by multiple genes and their encoded proteins. In particular, the nonstructural protein 1 (NS1) of viruses is a multifunctional protein that plays an important role in type I interferon (IFN) antagonism, pathogenicity, and...

Author(s)
Cui XiaoLe; Ji YanHong; Wang ZhengXiang; Du YingYing; Guo HaoRan; Wang Liang; Chen HuaLan; Zhu QiYun
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2018, 225, pp 6-16
Abstract

The H9N2 strains of avian influenza viruses (AIVs) circulate worldwide in poultry and cause sporadic infection in humans. To better understand the evolution of these viruses while circulating in poultry, an H9N2 chicken isolate was passaged 19 times in chickens via aerosol inoculation. Whole-genome ...

Author(s)
Jegede, A.; Fu QiGao; Berhane, Y.; Lin Min; Ashok Kumar; Guan JieWen
Publisher
Canadian Veterinary Medical Association, Ottawa, Canada
Citation
Canadian Journal of Veterinary Research, 2018, 82, 2, pp 131-138
Abstract

Background: Vaccines constitute a unique selective pressure, different from natural selection, drives the evolution of influenza virus. In this study, A/Chicken/Shanghai/F/1998 (H9N2) was continually passaged in specific pathogen-free embryonated chicken eggs with or without selective pressures...

Author(s)
Jin HaiYun; Wang Wan; Yang XueQin; Su HaiLong; Fan JiaWen; Zhu Rui; Wang ShiFeng; Shi HuoYing; Liu XiuFan
Publisher
BioMed Central Ltd, London, UK
Citation
BMC Veterinary Research, 2018, 14, 71, pp (6 March 2018)

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