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Volume 31, Number 6—June 2025

Dispatch

Highly Pathogenic Avian Influenza A(H5N1) in Wild Birds and a Human, British Columbia, Canada, 2024

Chelsea G. HimsworthComments to Author , Jessica M. Caleta, Agatha N. Jassem, Kevin C. Yang, James E.A. Zlosnik, John R. Tyson, Laurie Wilson, Kevin S. Kuchinski, Jolene Giacinti, Megan Willie, Tony D. Redford, Maeve Winchester, Caeley Thacker, Yohannes Berhane, Theresa Burns, Natalie Prystajecky, and Shannon L. Russell
Author affiliation: British Columbia Ministry of Agriculture and Food, Abbotsford, British Columbia, Canada (C.G. Himsworth, T.D. Redford, T. Burns); British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada (J.M. Caleta, A.N. Jassem, K.C. Yang, J.E.A. Zlosnik, J.R. Tyson, K.S. Kuchinski, N. Prystajecky, S.L. Russell); Canadian Wildlife Service–Environment and Climate Change Canada, Delta, British Columbia, Canada (L. Wilson, M. Willie); Environment and Climate Change Canada, Ottawa, Ontario, Canada (J. Giacinti); British Columbia Ministry of Water, Land and Resource Stewardship, Nanaimo, British Columbia, Canada (M. Winchester, C. Thacker); Canadian Food Inspection Agency, Winnipeg, Manitoba, Canada (Y. Berhane)

Main Article

Figure 1

Hemagglutinin-specific phylogenetic analysis of clade 2.3.4.4b detections from a study of highly pathogenic avian influenza A(H5N1) in wild birds and a human, British Columbia, Canada, 2024. Data based on detections during September 2021–November 2024 contextualized by sequences from other parts of North and South America. Trees are rooted on the A/goose/Guangdong/1/96 (H5) reference sequence. A) Detections of all genotypes plotted on the basis of specimen collection date. B) Genotype A3 and D1.1 detections plotted on the basis of divergence.

Figure 1. Hemagglutinin-specific phylogenetic analysis of clade 2.3.4.4b detections from a study of highly pathogenic avian influenza A(H5N1) in wild birds and a human, British Columbia, Canada, 2024. Data based on detections during September 2021–November 2024 contextualized by sequences from other parts of North and South America. Trees are rooted on the A/goose/Guangdong/1/96 (H5) reference sequence. A) Detections of all genotypes plotted on the basis of specimen collection date. B) Genotype A3 and D1.1 detections plotted on the basis of divergence.

Main Article

Page created: May 08, 2025
Page updated: May 21, 2025
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