Results 21 to 30 of about 5,920 (184)

Coinfection of avian influenza virus (H9N2 subtype) with infectious bronchitis live vaccine [PDF]

Archives of Virology, 2008
Avian influenza virus of H9N2 subtype is pathotyped as a non-highly pathogenic virus. However, frequent incidences of avian influenza of high mortality that are caused by H9N2 viruses have been observed in broiler chicken farms in Iran and some other Asian countries. Coinfections or environmental factors may be involved in such cases.
K Asasi, H Nili, H Dadras
exaly   +3 more sources

Evaluation of the antiviral effects of aqueous extracts of red and yellow onions (Allium Cepa) against avian influenza virus subtype H9N2 [PDF]

The Iranian Journal of Veterinary Science and Technology, 2018
Avian influenza virus subtype H9N2 causes important economic losses in industrial poultry worldwide. Biosecurity and vaccination have not completely prevented the outbreak of avian influenza virus subtype H9N2 in poultry, and there are no appropriate ...
Saba Ahmadi, Zolfaghar Rajabi, Mehdi Vasfi-Marandi   +2 more
doaj   +2 more sources

Development and Evaluation of Real-Time RT-PCR Test for Quantitative and Qualitative Recognition of Current H9N2 Subtype Avian Influenza Viruses in Iran [PDF]

Archives of Razi Institute, 2018
Avian influenza H9N2 subtype viruses have had a great impact on Iranian industrial poultry production economy since introduction in the country. To approach Rapid and precise identification of this viruses as control measures in poultry industry, a real ...
S. G. Mirzaei, A. Shoushtari, A. Nouri
doaj   +2 more sources

Identification of catalytically active domain epitopes in neuraminidase protein of H9N2 subtype of avian influenza virus

Avian Pathology, 2023
H9N2 subtype of avian influenza virus (AIV) is primarily a bird virus, which is widespread in clinical avian disease, and reported in cases of human infection. As one of the surface proteins of AIV, the neuraminidase (NA) protein plays an important role mainly in viral budding.
Xiangyu, Huang, Yiqin, Cai, Guihu, Yin, Zili, Chen, Jianing, Hu, Zichen, Gao, Xinyu, Guo, Fuqiang, Xiong, Xiuli, Feng   +8 more
openaire   +3 more sources

Evaluation of Rice Traits Containing H9N2 Subtype Avian Influenza HA Protein Before Commercialization. [PDF]

Curr Issues Mol Biol
The H9N2 avian influenza virus (AIV) is difficult to prevent and control because of its low pathogenicity and frequent mutation. In a previous study, the HA (hemagglutinin) protein of H9N2 was expressed in a rice endosperm reactor and prepared into a subunit vaccine to immunize chickens and mice, both of which exhibited a good immunity effect.
Chu H, Hao Z, Zhang L, Lou Y, Hua Y, Gao W, Li F, Han L, Bian S, Cheng W, Zhang J, Zhu Y, Pan S, Zhang E, Wang X, Zhang G.   +15 more
europepmc   +4 more sources

Effects of the Glycosylation of the HA Protein of H9N2 Subtype Avian Influenza Virus on the Pathogenicity in Mice and Antigenicity. [PDF]

Transbound Emerg Dis
As the H9N2 subtype avian influenza virus (H9N2 AIV) evolves naturally, mutations in the hemagglutinin (HA) protein still occur, which involves some sites with glycosylations. It is widely established that glycosylation of the H9N2 AIV HA protein has a major impact on the antigenicity and pathogenicity of the virus. However, the biological implications
Liang B, Fan M, Meng Q, Zhang Y, Jin J, Chen N, Lu Y, Jiang C, Zhang X, Zou Z, Ping J, Su J.   +11 more
europepmc   +3 more sources

Evolution of prevalent H9N2 subtype of avian influenza virus during 2019 to 2022 for the development of a control strategy in China [PDF]

Poultry Science, 2023
Xin-Feng Han, San-Jie Cao, Yong Huang
exaly   +2 more sources

Effect of avian influenza virus subtype H9N2 on the expression of complement-associated genes in chicken erythrocytes

British Poultry Science, 2023
1. The H9N2 subtype avian influenza virus can infect both chickens and humans. Previous studies have reported a role for erythrocytes in immunity. However, the role of H9N2 against chicken erythrocytes and the presence of complement-related genes in erythrocytes has not been studied.
J. Zhou, M. L. Qiao, A. R. Jahejo, X. Y. Han, P. Wang, Y. Wang, J. L. Ren, S. Niu, Y. J. Zhao, D. Zhang, Y. H. Bi, Q. H. Wang, L. L. Si, R. W. Fan, G. J. Shang, W. X. Tian   +15 more
openaire   +3 more sources

Reverse Transcription Recombinase Polymerase Amplification Assay for Rapid Detection of Avian Influenza Virus H9N2 HA Gene

Veterinary Sciences, 2021
The H9N2 subtype of avian influenza A virus (aIAV) is circulating among birds worldwide, leading to severe economic losses. H9N2 cocirculation with other highly pathogenic aIAVs has the potential to contribute to the rise of new strains with pandemic ...
Nahed Yehia, Fatma Eldemery, Abdel-Satar Arafa, Ahmed Abd El Wahed, Ahmed El Sanousi, Manfred Weidmann, Mohamed Shalaby   +6 more
doaj   +2 more sources

Effectively Evaluating a Novel Consensus Subunit Vaccine Candidate to Prevent the H9N2 Avian Influenza Virus

Vaccines
The enormous effects of avian influenza on poultry production and the possible health risks to humans have drawn much attention to this disease. The H9N2 subtype of avian influenza virus is widely prevalent among poultry, posing a direct threat to humans
Qi Wu, Weihua Wang, Xuehua Zhang, Ding Li, Mei Mei   +4 more
doaj   +2 more sources