Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus in Wild Birds, Chile
- PMID: 37487166
- PMCID: PMC10461661
- DOI: 10.3201/eid2909.230067
Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus in Wild Birds, Chile
Abstract
In December 2022, highly pathogenic avian influenza A(H5N1) clade 2.3.4.4b virus emerged in Chile. We detected H5N1 virus in 93 samples and obtained 9 whole-genome sequences of strains from wild birds. Phylogenetic analysis suggests multiple viral introductions into South America. Continued surveillance is needed to assess risks to humans and domestic poultry.
Keywords: Avian influenza virus; Chile; H5N1 subtype; influenza; influenza A virus; respiratory infections; viral dissemination; viruses; wild birds; zoonoses.
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