🧬 biology

Highly Pathogenic Avian Influenza Clade 2.3.4.4b in Antarctic Pinnipeds: first evidences of virus circulation in Weddell seals

This study provides the first evidence of highly pathogenic avian influenza H5N1 clade 2.3.4.4b circulation in Antarctic Weddell seals, detected through non-invasive fecal sampling and linked to the South American viral lineage, highlighting the need for continued One Health monitoring of Antarctic marine mammals.

Original authors: Alanis Silva Melgarejo, Miguel Leonetti Corrêa, Bruna Simone Paredes-Galarza, Raissa Gasparetto, Francine Cezar Bandeira Timm, Nicole Vieira Stone, Carolina Pezzi Lucca, Fernanda Muckler Pereira, Isab

Published 2026-09-11

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CC BY 4.0

Original authors: Alanis Silva Melgarejo, Miguel Leonetti Corrêa, Bruna Simone Paredes-Galarza, Raissa Gasparetto, Francine Cezar Bandeira Timm, Nicole Vieira Stone, Carolina Pezzi Lucca, Fernanda Muckler Pereira, Isabella Grazini-Capelin, Lina Marcela Violet-Lozano, Sara Hartke, Andrea Gomes Tavanti, Lucas Krüger, Martha Trindade Oliveira, Dennis Maletich Junqueira, Larissa Rosa Oliveira, Ana Cláudia Franco

Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). ⚕️ This is an AI-generated explanation of a preprint that has not been peer-reviewed. It is not medical advice. Do not make health decisions based on this content. Read full disclaimer

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