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Genetic characteristics and pathogenesis of clade 2.3.4.4b H5N1 high pathogenicity avian influenza virus isolated from poultry in South Korea, 2022–2023

8 Feb 2025

Abstract excerpt

• In 2022–2023, the clade 2.3.4.4b H5N1 HPAIV caused 75 outbreaks in poultry farms and 174 wild bird cases in South Korea. • H5N1 HPAIV isolates were closely related to Eurasian/American HPAIVs isolated in 2022–2023. • Twenty-one genotypes(22G0–22G20) identified, among which 22G7 was the dominant genotype. • The 22G1 genotype caused high virulence and pathogenicity, with a 100 % mortality rate and...

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Influenza Virus Research Studies
Respiratory viral infections research
Viral gastroenteritis research and epidemiology

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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PMID: 39894372
DOI: 10.1016/j.virusres.2025.199541

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 1 Sept 2026.

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