ArticleViruses2019
Genetic Characteristics and Pathogenicity Analysis in Chickens and Mice of Three H9N2 Avian Influenza Viruses.
Article in Viruses, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
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Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.
- Transmission Pathways of Zoonotic Influenza Viruses and Influencing Factors: A Systematic Review of Recent Findings.Viruses · 2025Pooled it
- Molecular characterization and pathogenicity of H9N2 avian influenza viruses in poultry in Shandong Province, China, 2021-2023.Poultry science · 2026Article
- Genetic and Pathogenicity Studies of Avian Influenza (H9N2) Virus Isolated from Chickens in Jiangsu Province, China, in 2025.Microorganisms · 2026Article
- Phylogenetic Analyses and Biological Characterization of H9N2 Avian Influenza Virus Isolated from Chickens in China from 2022 to 2023.Microorganisms · 2025Article
- A Novel Recombinant Chicken-Derived H6N8 Subtype Avian Influenza Virus Caused Disease in Chickens and Mice.Viruses · 2025Article
- Epidemiology and evolutionary dynamics of H9N2 avian influenza virus in Bangladesh.Emerging microbes & infections · 2025Article
- Investigation into the efficacy of a commercially available inactivated avian influenza virus (AIV) vaccine (H9N2) through experimental and field assessments, with an emphasis on its compatibility with recent AIV (H9N2) G1-sublineage isolates.Veterinary research communications · 2025Article
- Article
- Genetic, Antigenic, and Pathobiological Characterization of H9 and H6 Low Pathogenicity Avian Influenza Viruses Isolated in Vietnam from 2014 to 2018.Microorganisms · 2023Article
- Current situation and control strategies of H9N2 avian influenza in South Korea.Journal of veterinary science · 2023Review
- Genetic Variations among Different Variants of G1-like Avian Influenza H9N2 Viruses and Their Pathogenicity in Chickens.Viruses · 2022Article
- Influenza Virus Neuraminidase Engages CD83 and Promotes Pulmonary Injury.Journal of virology · 2021Article
- Infectious Bronchitis Virus Infection Increases Pathogenicity of H9N2 Avian Influenza Virus by Inducing Severe Inflammatory Response.Frontiers in veterinary science · 2021Article
- Non-basic amino acids in the hemagglutinin proteolytic cleavage site of a European H9N2 avian influenza virus modulate virulence in turkeys.Scientific reports · 2020Article
- Article
Corrections and comments
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
H9N2 avian influenza is a remarkable disease that has circulated in domestic poultry in large regions of China and posed a serious threat to the poultry industry. The H9N2 virus can not only infect mammals directly, but also provide gene segments to generate novel, but lethal human reassortants. Therefore, it is important to study the evolution, pathogenicity, and transmission of the H9N2 virus. In this study, three H9N2 viruses isolated from chickens in different layer farms were identified. Phylogenetic analysis revealed that these H9N2 viruses were all multiple genotype reassortants, with genes originating from Y280-like, F/98-like, and G1-like viruses. Animal studies indicated that the AV1535 and AV1548 viruses replicated efficiently in the lungs, tracheas, spleens, kidneys, and brains of chickens; the viruses shed for at least 11 days post-inoculation (DPI) and were transmitted efficiently among contact chickens. The AV1534 virus replicated poorly in chickens, shed for 7 DPI, and were not transmitted efficiently among contact chickens. The AV1534 virus replicated well in mice lungs and caused about 2% weight loss. The AV1535 and AV1548 viruses were not able to replicate in the lungs of mice. Our results indicate that we should pay attention to H9N2 avian influenza virus surveillance in poultry and changes in the pathogenicity of them to mammals.
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