ArticlePoultry science2026
Distinct infectivity, pathogenicity, and adaptive evolution of clade 2.3.4.4 H5N2 avian influenza viruses in chickens in Taiwan.
Article in Poultry science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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12 authors.
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Abstract
High pathogenicity avian influenza virus (HPAIV) drives fulminant poultry epizootics with high mortality and significant production losses. In Taiwan, HPAIV clade 2.3.4.4c H5N2 has circulated since 2015 across different farms, providing an opportunity to assess strain-specific virulence over time. Four representative strains were examined: the index strain GS-2015 (January 2015) and three subsequent isolates-CK-2015 (December 2015), CK-2017 (2017), and CK-2018 (2018). Virulence was evaluated in the chicken model alongside genomic characterization. Overall, strains isolated after the index case exhibited higher mortality rates, shorter mean death times (MDTs), and lower minimal lethal doses compared with GS-2015. Marked variation in the 50 % bird lethal dose (BLD
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