Epidemiological data of an influenza A/H5N1 outbreak in elephant seals in Argentina indicates mammal-to-mammal transmission

H5N1 high pathogenicity avian influenza virus has killed thousands of marine mammals in South America since 2022. Here we report epidemiological data and full genome characterization of clade 2.3.4.4b H5N1 HPAI viruses associated with a massive outbreak in southern elephant seals (Mirounga leonina)...

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Autores principales: Uhart, Marcela M., Vanstreels, Ralph E. T., Nelson, Martha I., Olivera, Valeria Soledad, Campagna, Julieta, Zavattieri, Victoria, Lemey, Philippe, Campagna, Claudio, Falabella, Valeria, Rimondi, Agustina
Formato: Artículo
Lenguaje:Inglés
Publicado: Nature Publishing Group 2024
Materias:
Acceso en línea:http://hdl.handle.net/20.500.12123/20462
https://www.nature.com/articles/s41467-024-53766-5
https://doi.org/10.1038/s41467-024-53766-5
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author Uhart, Marcela M.
Vanstreels, Ralph E. T.
Nelson, Martha I.
Olivera, Valeria Soledad
Campagna, Julieta
Zavattieri, Victoria
Lemey, Philippe
Campagna, Claudio
Falabella, Valeria
Rimondi, Agustina
author_browse Campagna, Claudio
Campagna, Julieta
Falabella, Valeria
Lemey, Philippe
Nelson, Martha I.
Olivera, Valeria Soledad
Rimondi, Agustina
Uhart, Marcela M.
Vanstreels, Ralph E. T.
Zavattieri, Victoria
author_facet Uhart, Marcela M.
Vanstreels, Ralph E. T.
Nelson, Martha I.
Olivera, Valeria Soledad
Campagna, Julieta
Zavattieri, Victoria
Lemey, Philippe
Campagna, Claudio
Falabella, Valeria
Rimondi, Agustina
author_sort Uhart, Marcela M.
collection INTA Digital
description H5N1 high pathogenicity avian influenza virus has killed thousands of marine mammals in South America since 2022. Here we report epidemiological data and full genome characterization of clade 2.3.4.4b H5N1 HPAI viruses associated with a massive outbreak in southern elephant seals (Mirounga leonina) at Península Valdés, Argentina, in October 2023. We also report on H5N1 viruses in concurrently dead terns. Our genomic analysis shows that viruses from pinnipeds and terns in Argentina form a distinct clade with marine mammal viruses from Peru, Chile, Brazil and Uruguay. Additionally, these marine mammal clade viruses share an identical set of mammalian adaptation mutations which were also present in tern viruses. Our combined ecological and phylogenetic data support mammal-to-mammal transmission and occasional mammal-to-bird spillover and suggest multinational transmission of H5N1 viruses in mammals. We reflect that H5N1 viruses becoming more evolutionary flexible and adapting to mammals in new ways could have global consequences for wildlife, humans, and/or livestock.
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spelling INTA204622024-12-04T11:53:07Z Epidemiological data of an influenza A/H5N1 outbreak in elephant seals in Argentina indicates mammal-to-mammal transmission Uhart, Marcela M. Vanstreels, Ralph E. T. Nelson, Martha I. Olivera, Valeria Soledad Campagna, Julieta Zavattieri, Victoria Lemey, Philippe Campagna, Claudio Falabella, Valeria Rimondi, Agustina Influenzavirus Marine Mammals Pathogenicity Disease Outbreaks Mirounga leonina Mamífero Marino Patogenicidad Brote de Enfermedad Argentina Elephant Seals Elefante Marino H5N1 high pathogenicity avian influenza virus has killed thousands of marine mammals in South America since 2022. Here we report epidemiological data and full genome characterization of clade 2.3.4.4b H5N1 HPAI viruses associated with a massive outbreak in southern elephant seals (Mirounga leonina) at Península Valdés, Argentina, in October 2023. We also report on H5N1 viruses in concurrently dead terns. Our genomic analysis shows that viruses from pinnipeds and terns in Argentina form a distinct clade with marine mammal viruses from Peru, Chile, Brazil and Uruguay. Additionally, these marine mammal clade viruses share an identical set of mammalian adaptation mutations which were also present in tern viruses. Our combined ecological and phylogenetic data support mammal-to-mammal transmission and occasional mammal-to-bird spillover and suggest multinational transmission of H5N1 viruses in mammals. We reflect that H5N1 viruses becoming more evolutionary flexible and adapting to mammals in new ways could have global consequences for wildlife, humans, and/or livestock. Instituto de Virología Fil: Uhart, Marcela M. University of California Davis. School of Veterinary Medicine. Karen C. Drayer Wildlife Health Center; Estados Unidos Fil: Uhart, Marcela M. Southern RightWhale Health Monitoring Program; Argentina Fil: Vanstreels, Ralph E. T. University of California Davis. School of Veterinary Medicine. Karen C. Drayer Wildlife Health Center; Estados Unidos Fil: Nelson, Martha I. National Institutes of Health. National Library of Medicine. National Center for Biotechnology Information; Estados Unidos Fil: Olivera, Valeria Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología e Innovaciones Tecnológicas; Argentina Fil: Olivera, Valeria Soledad. Consejo Nacional de Investigaciones Científcas y Técnicas; Argentina Fil: Campagna, Julieta. Wildlife Conservation Society. Argentina Program; Argentina Fil: Zavattieri, Victoria. Wildlife Conservation Society. Argentina Program; Argentina Fil: Lemey, Philippe. Laboratory for Clinical and Epidemiological Virology. Rega Institute. Department of Microbiology, Immunology and Transplantation; Bélgica Fil: Campagna, Claudio. Wildlife Conservation Society. Argentina Program; Argentina Fil: Falabella, Valeria. Wildlife Conservation Society. Argentina Program; Argentina Fil: Rimondi, Agustina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología e Innovaciones Tecnológicas; Argentina Fil: Rimondi, Agustina. Consejo Nacional de Investigaciones Científcas y Técnicas; Argentina Fil: Rimondi, Agustina. Robert Koch Institute-Alexander von Humboldt fellowship; Alemania 2024-12-04T11:45:07Z 2024-12-04T11:45:07Z 2024-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/20462 https://www.nature.com/articles/s41467-024-53766-5 2041-1723 https://doi.org/10.1038/s41467-024-53766-5 eng info:eu-repograntAgreement/INTA/2023-PD-L06-I114, Desarrollo y aplicación de métodos diagnósticos y epidemiológicos para la producción pecuaria sustentable y agroalimentaria en humanos con foco en Una Salud info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Nature Publishing Group Nature Communications 15 : 9516 (Noviember 2024)
spellingShingle Influenzavirus
Marine Mammals
Pathogenicity
Disease Outbreaks
Mirounga leonina
Mamífero Marino
Patogenicidad
Brote de Enfermedad
Argentina
Elephant Seals
Elefante Marino
Uhart, Marcela M.
Vanstreels, Ralph E. T.
Nelson, Martha I.
Olivera, Valeria Soledad
Campagna, Julieta
Zavattieri, Victoria
Lemey, Philippe
Campagna, Claudio
Falabella, Valeria
Rimondi, Agustina
Epidemiological data of an influenza A/H5N1 outbreak in elephant seals in Argentina indicates mammal-to-mammal transmission
title Epidemiological data of an influenza A/H5N1 outbreak in elephant seals in Argentina indicates mammal-to-mammal transmission
title_full Epidemiological data of an influenza A/H5N1 outbreak in elephant seals in Argentina indicates mammal-to-mammal transmission
title_fullStr Epidemiological data of an influenza A/H5N1 outbreak in elephant seals in Argentina indicates mammal-to-mammal transmission
title_full_unstemmed Epidemiological data of an influenza A/H5N1 outbreak in elephant seals in Argentina indicates mammal-to-mammal transmission
title_short Epidemiological data of an influenza A/H5N1 outbreak in elephant seals in Argentina indicates mammal-to-mammal transmission
title_sort epidemiological data of an influenza a h5n1 outbreak in elephant seals in argentina indicates mammal to mammal transmission
topic Influenzavirus
Marine Mammals
Pathogenicity
Disease Outbreaks
Mirounga leonina
Mamífero Marino
Patogenicidad
Brote de Enfermedad
Argentina
Elephant Seals
Elefante Marino
url http://hdl.handle.net/20.500.12123/20462
https://www.nature.com/articles/s41467-024-53766-5
https://doi.org/10.1038/s41467-024-53766-5
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