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Genesis and Spread of Novel Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus Genotype EA-2023-DG Reassortant, Western Europe

6 May 2025

Abstract excerpt

In Europe, highly pathogenic avian influenza (HPAI) virus circulates in avian wildlife, undergoing frequent reassortment, sporadic introductions in domestic birds, and spillover to mammals. An H5N1 clade 2.3.4.4b reassortant, EA-2023-DG, affecting wild and domestic birds was detected in western Europe in November 2023. Six of its RNA segments came from the EA-2021-AB genotype, but the polymerase basic 2 and...

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Influenza Virus Research Studies
Viral gastroenteritis research and epidemiology
Viral Infections and Vectors

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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PMID: 40323677
DOI: 10.3201/eid3106.241870

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