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Peer-reviewed veterinary case report

Genetic Characterization of Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b, Antarctica, 2024.

Journal:
Emerging infectious diseases
Year:
2025
Authors:
Neira, Victor et al.
Species:
bird

Abstract

In 2024, we sequenced highly pathogenic avian influenza virus A(H5N1) clade 2.3.4.4b genomes isolated from 5 brown skuas from James Ross Island, Antarctica. Phylogenetic analysis suggested the virus reached Antarctica through South America. Continued genetic surveillance will be critical to elucidate H5N1 virus transmission dynamics within Antarctica and surrounding areas.

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Original publication: https://pubmed.ncbi.nlm.nih.gov/40633557/