Multiple independent introductions of highly pathogenic avian influenza H5 viruses during the 2020–2021 epizootic in France

During winter 2020–2021, France and other European countries were severely affected by highly pathogenic avian influenza H5 viruses of the Gs/GD/96 lineage, clade 2.3.4.4b. In total, 519 cases occurred, mainly in domestic waterfowl farms in Southwestern France. Analysis of viral genomic sequences in...

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Detalles Bibliográficos
Autores principales: Briand, François‐Xavier, Niqueux, Eric, Schmitz, Audrey, Martenot, Claire, Cherbonnel, Martine, Massin, Pascale, Busson, Rachel, Guillemoto, Carole, Pierre, Isabelle, Louboutin, Katell, Souchaud, Florent, Allée, Chantal, Quenault, Helene, Lucas, Pierrick, de Wiele, Anne Van, Blanchard, Yannick, Eterradossi, Nicolas, Scoizec, Axelle, Bouquin‐Leneveu, Sophie Le, Rautureau, Severine, Lambert, Yves, Grasland, Béatrice
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Short Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10092607/
https://www.ncbi.nlm.nih.gov/pubmed/36161777
http://dx.doi.org/10.1111/tbed.14711
Descripción
Sumario:During winter 2020–2021, France and other European countries were severely affected by highly pathogenic avian influenza H5 viruses of the Gs/GD/96 lineage, clade 2.3.4.4b. In total, 519 cases occurred, mainly in domestic waterfowl farms in Southwestern France. Analysis of viral genomic sequences indicated that 3 subtypes of HPAI H5 viruses were detected (H5N1, H5N3, H5N8), but most French viruses belonged to the H5N8 subtype genotype A, as Europe. Phylogenetic analyses of HPAI H5N8 viruses revealed that the French sequences were distributed in 9 genogroups, suggesting 9 independent introductions of H5N8 from wild birds, in addition to the 2 introductions of H5N1 and H5N3.

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