Highly Pathogenic Avian Influenza A(H5N1) in Wild Birds and a Human, British Columbia, Canada, 2024
Chelsea G. Himsworth, Jessica M. Caleta, Agatha N. Jassem, Kevin Yang, James E. A. Zlosnik, John R. Tyson, Laurie Wilson, Kevin S. Kuchinski, Jolene A. Giacinti, Megan Willie, Tony Redford, Maeve Winchester, Caeley Thacker, Yohannes Berhane, Theresa Burns, Natalie Prystajecky, Shannon Russell
Abstract
We characterized highly pathogenic avian influenza A(H5N1) clade 2.3.4.4b genotype D1.1 in wild birds and a human in British Columbia, Canada, during 2024. D1.1, the predominant genotype circulating in fall 2024, is a reassortment between Eurasian A3 lineage viruses, introduced to North America in 2022, and North American lineage viruses.
Topics & Concepts
Influenza A virus subtype H5N1ReassortmentCladeLineage (genetic)Highly pathogenicVirologyGenotypeBiologyZoologyGeneVirusPhylogeneticsGeneticsCoronavirus disease 2019 (COVID-19)Infectious disease (medical specialty)MedicineDiseasePathologyInfluenza Virus Research StudiesViral Infections and VectorsRespiratory viral infections research