نتایج جستجو برای: influenza h9n2 virus

تعداد نتایج: 431639  

Journal: :The Journal of veterinary medical science 2012
Naoki Nomura Yoshihiro Sakoda Kosuke Soda Masatoshi Okamatsu Hiroshi Kida

H9N2 influenza viruses circulate in wild birds and poultry in Eurasian countries, and have been isolated from pigs and humans in China. H9N2 viruses isolated from birds, pigs and humans have been classified into three sublineages based on antigenic and genetic features. Chicken antisera to H9N2 viruses of the Korean sublineage reacted with viruses of different sublineages by the hemagglutinatio...

Journal: :Avian Pathology 2021

This article refers to:RETRACTED ARTICLE: Role of aflatoxin toxicity on transmissibility and pathogenicity H9N2 avian influenza virus in turkeys

2017
Jose Carlos Mancera Gracia Silvie Van den Hoecke Xavier Saelens Kristien Van Reeth

H9N2 avian influenza viruses are endemic in poultry in Asia and the Middle East. These viruses sporadically cause dead-end infections in pigs and humans raising concerns about their potential to adapt to mammals or reassort with human or swine influenza viruses. We performed ten serial passages with an avian H9N2 virus (A/quail/Hong Kong/G1/1997) in influenza naïve pigs to assess the potential ...

A Fanni , A Ghalyanchi-Langeroudi , A Shojaee-Estabragh , K Majidzadeh- A , M Soleimani , O Mandegar , V Karimi ,

Background and Aims: Avian Influenza (AI) H9N2 subtype was first reported to infect turkeys in the United States in 1966 and has been panzootic in Eurasia. In Iran, the H9N2 virus was first isolated from broiler chickens in 1998 in Ghazvin province and it is the most prevalent subtype of influenza virus in poultry industry in Iran at the present time. Materials and Methods: In this study, we se...

2013
Nguyen Tai Nang Byung Min Song Young Myong Kang Heui Man Kim Hyun Soo Kim Sang Heui Seo

BACKGROUND   The highly pathogenic H5N1 and H9N2 influenza viruses are endemic in many countries around the world and have caused considerable economic loss to the poultry industry. Objectives  We aimed to study whether a live attenuated H5N1 vaccine comprising internal genes from a cold-adapted H9N2 influenza virus could protect chickens from infection by both H5N1 and H9N2 viruses. METHODS ...

Journal: :The Journal of general virology 2015
Huijie Gao Guanlong Xu Yipeng Sun Lu Qi Jinliang Wang Weili Kong Honglei Sun Juan Pu Kin-Chow Chang Jinhua Liu

H9N2 influenza viruses have been circulating worldwide in multiple avian species, and regularly infect pigs and humans. Recently, a novel protein, PA-X, produced from the PA gene by ribosomal frameshifting, was demonstrated to be an antivirulence factor in pandemic 2009 H1N1, highly pathogenic avian H5N1 and 1918 H1N1 viruses. However, a similar role of PA-X in the prevalent H9N2 avian influenz...

2011
M. M. Hadipour SH. Farjadian F. Azad N. Sheibani A. Olyaie

Low pathogenic avian influenza (H9N2) is of major concern for the poultry industry especially in Iran, as the virus can spread rapidly in and between flocks, causing high mortality and severe economic losses. The aim of this study was to determine the pathogenicity of H9N2 avian influenza virus in thymus and bursa of Fabricius of commercial broiler chickens, so we studied the histologic lesions...

Journal: :Vaccine 2007
Peter Pushko Terrence M Tumpey Neal Van Hoeven Jessica A Belser Robin Robinson Margret Nathan Gale Smith D Craig Wright Rick A Bright

The development of safe and effective vaccines for avian influenza viruses is a priority for pandemic preparedness. Adjuvants improve the efficacy of vaccines and may allow antigen sparing during a pandemic. We have previously shown that influenza virus-like particles (VLPs) comprised of HA, NA, and M1 proteins represent a candidate vaccine for avian influenza H9N2 virus [Pushko P, Tumpey TM, F...

Journal: :The Journal of infectious diseases 2012
Man To Ling Wenwei Tu Yan Han Huawei Mao Wai Po Chong Jing Guan Ming Liu Kwok Tai Lam Helen K W Law J S Malik Peiris K Takahashi Yu Lung Lau

BACKGROUND Mannose-binding lectin (MBL) is a pattern-recognition molecule, which functions as a first line of host defense. Pandemic H1N1 (pdmH1N1) influenza A virus caused massive infection in 2009 and currently circulates worldwide. Avian influenza A H9N2 (H9N2/G1) virus has infected humans and has the potential to be the next pandemic virus. Antiviral function and immunomodulatory role of MB...

باهنر, علیرضا, زین العابدینی طهرانی, فرشاد , صدر زاده, اوستا, غفوری, سید علی, فلاح مهر آبادی, محمد حسین, مسرور, فریبرز, مشکوه, محسن, وصفی مرندی, مهدی,

  Background and Objectives : Influenza is an acute, contagious, and zoonotic viral disease. It is caused by a virus of the Orthomyxoviridae family. This very infectious is caused by different subtypes of type A influenza virus in the poultry, turkey, and many other birds. In this study, the serum status of rural domestic poultry was investigated for influenza subtype H9N2.  Methods: This cr...

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