Genetic Characterization of Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b, Antarctica, 2024
Víctor Neira, Naomi Ariyama, Pablo N. Castillo-Torres, Bárbara Brito, Gabriela Muñoz, Karla B. Díaz Morales, Leonardo I. Almonacid, Benjamín Bennett-Laso, Bárbara Berazay, Miloš Barták, Rafael Medina, Marcelo González‐Aravena, Catalina Pardo‐Roa
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.
Topics & Concepts
CladeInfluenza A virus subtype H5N1Highly pathogenicPhylogenetic treeBiologyVirusPhylogeneticsAvian influenza virusInfluenza A virusGenomeVirologyZoologyEvolutionary biologyGeneticsGeneInfluenza Virus Research StudiesAnimal Disease Management and EpidemiologyViral gastroenteritis research and epidemiology