Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus in Wild Birds, Chile.

Naomi Ariyama,Catalina Pardo-Roa,Gabriela Muñoz,Carolina Aguayo, Claudia Ávila,Christian Mathieu,Leonardo I Almonacid,Rafael A Medina,Barbara Brito,Magdalena Johow,Victor Neira

Emerging infectious diseases（2023）

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摘要

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.

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关键词

Avian influenza virus,viruses,zoonoses,influenza,respiratory infections,influenza A virus

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