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Novel Genotypes of Highly Pathogenic Avian Influenza H5N1 Clade 2.3.4.4b Viruses, Germany, November 2023.

Emerging infectious diseases - 1 Aug 2024

Ahrens Ann Kathrin, Pohlmann Anne, Grund Christian, Harder Timm, Beer Martin

Abstract excerpt

Several subtypes and many different genotypes of highly pathogenic avian influenza viruses of subtype H5 clade 2.3.4.4b have repeatedly caused outbreaks in Germany. Four new highly pathogenic avian influenza genotypes emerged in November 2023 after reassortment with low pathogenicity precursors, replacing genotype BB, which had dominated in Europe since 2022.

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Identifiers

PMID: 38986148
DOI: 10.3201/eid3008.240103
PMCID: PMC11286037

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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