#Global #Prevalence and #Distribution of #H9 Subtype of Avian #Influenza Viruses in Wild #Birds: Literature Review with Meta-Analysis
Abstract Background : As a natural accelerator of highly pathogenic avian influenza in wild birds , the H9 subtype of avian influenza poses a substantial threat to both humans and the poultry industry . A comprehensive meta-analysis is necessary to assess the current status of the global H9 outbreak. In this research, a literature review and meta-analysis are presented on the surveillance studies of the H9 subtype of avian influenza in wild birds worldwide up to 2024. Methods : A comprehensive search strategy was employed, utilizing the China Science and Technology Journal Database, China National Knowledge Infrastructure, PubMed, Google Scholar, and Scientific Direct databases. The exclusion criteria for this study included duplicate studies, reviews, other host studies, as well as research with inconsistent or insufficient data. An analysis was conducted on data obtained from a total of 31 publications. The rate-conversion analyses were conducted using a random-effects mod...