Molecular and Antigenic Characterization of Avian H9N2 Viruses in Southern China

• DOI: 10.1128/spectrum.00822-21
• Publication Date: 2022-01-12T15:30:38Z
• Authors: Wanwan Yan; Hongrui Cui; Marc Engelsma; Nancy Beerens; Monique M. van Oers; Mart C. M. de Jong; Xuesong Li; Qinfang Liu; Jianmei Yang; Qiaoyang Teng; Zejun Li
• Keywords: Phylogenic analysis; LPAI; 0301 basic medicine; China; Hemagglutinins, Viral; Microbiology; Evolution, Molecular; 03 medical and health sciences; Influenza A Virus, H9N2 Subtype; Animals; Antigenic change; Amino Acid Sequence; Antigenic Drift and Shift; Phylogeny; Poultry Diseases; 2. Zero hunger; H9N2; Antigenic Variation; QR1-502; 3. Good health; Amino Acid Substitution; phylogenic analysis; Influenza in Birds; antigenic change; Chickens; Research Article

The H9N2 low pathogenicity avian influenza (LPAI) virus has become endemic in poultry globally. In several Asian countries, vaccination against H9N2 avian influenza virus (AIV) was approved to reduce economic losses in the poultry industry.