Genomic surveillance and evolution of co-circulating avian influenza H5N1 and H5N8 viruses in Egypt, 2022-2024.

ABSTRACT: For over two decades, avian influenza virus (AIV) has significantly impacted the Egyptian poultry population, with multiple subtypes and genotypes contributing to significant economic and agricultural losses. As part of an ongoing national surveillance effort, this study aimed to monitor and genetically characterize AIV circulation across various poultry sectors in Egypt. Between 2022 and 2024, a total of 446,790 swab samples were collected, representing commercial farms (n = 25,057), backyard flocks (n = 403), and live bird markets "LBM" (n = 1250) to assess the prevalence and genetic diversity of circulating AIV strains. A total of 173 sampling units were found positive for high pathogenicity (HP) AIV H5, including farms (n = 17), backyards (n = 11), an

SUBMITTER: Eid S 

PROVIDER: S-EPMC12456045 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature