Results 31 to 40 of about 9,490 (173)

Isolation of avian influenza virus (H9N2) from emu in china [PDF]

open access: yesIrish Veterinary Journal, 2006
This is the first reported isolation of avian influenza virus (AIV) from emu in China. An outbreak of AIV infection occurred at an emu farm that housed 40 four-month-old birds.
Kang Wenhua   +3 more
doaj   +2 more sources

Impact of inactivated vaccine on transmission and evolution of H9N2 avian influenza virus in chickens [PDF]

open access: yesnpj Vaccines
H9N2 avian influenza virus (AIV) is endemic in poultry worldwide and increasingly zoonotic. Despite the long-term widespread use of inactivated vaccines, H9N2 AIVs remain dominant in chicken flocks.
Zhe Hu   +14 more
doaj   +2 more sources

Immunoinformatics Design of a Broad-Spectrum Multi-Epitope Vaccine Targeting HA2 and M1 of H9N2 AIV. [PDF]

open access: yesMicroorganisms
H9N2 avian influenza virus (AIV) continues to mutate, leading to immunosuppression and secondary infections in poultry. Traditional inactivated vaccines mainly induce humoral immunity and have limited cross-protection efficacy against various subtypes of virus strains.
Ji J   +9 more
europepmc   +2 more sources

Efficacy of recombinant Newcastle disease virus expressing HA protein of H9N2 Avian influenza virus in respiratory and intestinal tract

open access: yesPoultry Science, 2022
: H9N2 subtype avian influenza virus (AIV) is a low pathogenic AIV, which is widely prevalent all over the world. The infection of H9N2 AIV often leads to secondary infection with other pathogens, causing serious economic losses to poultry industry.
Guanming Shao   +9 more
doaj   +1 more source

Avian influenza viruses (AIVs) H9N2 are in the course of reassorting into novel AIVs [PDF]

open access: yesJournal of Zhejiang University-SCIENCE B, 2018
In 2013, two episodes of influenza emerged in China and caused worldwide concern. A new H7N9 avian influenza virus (AIV) first appeared in China on February 19, 2013. By August 31, 2013, the virus had spread to ten provinces and two metropolitan cities. Of 134 patients with H7N9 influenza, 45 died.
Hui-ping Chang   +8 more
openaire   +2 more sources

Antigen-capture ELISA and immunochromatographic test strip to detect the H9N2 subtype avian influenza virus rapidly based on monoclonal antibodies

open access: yesVirology Journal, 2021
Background The H9N2 subtype of avian influenza virus (AIV) has become the most widespread subtype of AIV among birds in Asia, which threatens the poultry industry and human health.
Yixin Xiao   +5 more
doaj   +1 more source

Infectious Bronchitis Virus Infection Increases Pathogenicity of H9N2 Avian Influenza Virus by Inducing Severe Inflammatory Response

open access: yesFrontiers in Veterinary Science, 2022
Infectious bronchitis virus (IBV) and H9N2 avian influenza virus (AIV) are frequently identified in chickens with respiratory disease. However, the role and mechanism of IBV and H9N2 AIV co-infection remain largely unknown.
Lingchen Kong   +40 more
doaj   +1 more source

Maternal-derived antibodies hinder the antibody response to H9N2 AIV inactivated vaccine in the field

open access: yesAnimal Diseases, 2022
AbstractThe H9N2 subtype avian influenza virus (AIV) inactivated vaccine has been used extensively in poultry farms, but it often fails to stimulate a sufficiently high immune response in poultry in the field, although it works well in laboratory experiments; hence, the virus still causes economic damage every year and poses a potential threat to ...
Xue Pan   +12 more
openaire   +2 more sources

Validation of up-regulated DEGs across all cells in the lung from H5N1 AIV (1 DPI) or H9N2 AIV (3DPI) infected chickens by qRT-PCR.

open access: yes, 2023
Total RNA of lung cell suspensions was extracted from three chickens of the H5N1 or H9N2 AIV-infected and control groups, respectively. The data of relative mRNA expression level was derived from the ratio of the H5N1 AIV (A) or H9N2 AIV-challenge (B ...
Bowen You (11671147)   +7 more
core   +1 more source

Phylogenetic and molecular characteristics of Eurasian H9 avian influenza viruses and their detection by two different H9-specific RealTime reverse transcriptase polymerase chain reaction tests [PDF]

open access: yes, 2013
Avian influenza viruses (AIVs) of the H9 haemagglutinin subtype are endemic in many Asian and Middle-East countries, causing mortality and morbidity in poultry.
Krill, D.   +9 more
core   +1 more source

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