The role of wild birds in the global highly pathogenic avian influenza H5 panzootic

Fuente: arXiv
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Hauptverfasser: Couty, Manon, Guinat, Claire, Fornasiero, Diletta, Briand, François-Xavier, Henry, Pierre-Yves, Grasland, Béatrice, Palumbo, Loïc, Loc'h, Guillaume Le
Format: Preprint
Veröffentlicht: 2025
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author Couty, Manon
Guinat, Claire
Fornasiero, Diletta
Briand, François-Xavier
Henry, Pierre-Yves
Grasland, Béatrice
Palumbo, Loïc
Loc'h, Guillaume Le
author_facet Couty, Manon
Guinat, Claire
Fornasiero, Diletta
Briand, François-Xavier
Henry, Pierre-Yves
Grasland, Béatrice
Palumbo, Loïc
Loc'h, Guillaume Le
contents The highly pathogenic avian influenza (HPAI) H5 clade 2.3.4.4b has triggered an unprecedented global panzootic. As the frequency and scale of HPAI H5 outbreaks continue to rise, understanding how wild birds contribute to shape the global virus spread across regions, affecting poultry, domestic and wild mammals, is increasingly critical. In this review, we examine ecological and evolutionary studies to map the global transmission routes of HPAI H5 viruses, identify key wild bird species involved in viral dissemination, and explore infection patterns, including mortality and survival. We also highlight major remaining knowledge gaps that hinder a full understanding of wild birds role in viral dynamics, which must be addressed to enhance surveillance strategies and refine risk assessment models aimed at preventing future outbreaks in wildlife, domestic animals and safeguard public health.
format Preprint
id arxiv_https___arxiv_org_abs_2504_11910
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The role of wild birds in the global highly pathogenic avian influenza H5 panzootic
Couty, Manon
Guinat, Claire
Fornasiero, Diletta
Briand, François-Xavier
Henry, Pierre-Yves
Grasland, Béatrice
Palumbo, Loïc
Loc'h, Guillaume Le
Populations and Evolution
The highly pathogenic avian influenza (HPAI) H5 clade 2.3.4.4b has triggered an unprecedented global panzootic. As the frequency and scale of HPAI H5 outbreaks continue to rise, understanding how wild birds contribute to shape the global virus spread across regions, affecting poultry, domestic and wild mammals, is increasingly critical. In this review, we examine ecological and evolutionary studies to map the global transmission routes of HPAI H5 viruses, identify key wild bird species involved in viral dissemination, and explore infection patterns, including mortality and survival. We also highlight major remaining knowledge gaps that hinder a full understanding of wild birds role in viral dynamics, which must be addressed to enhance surveillance strategies and refine risk assessment models aimed at preventing future outbreaks in wildlife, domestic animals and safeguard public health.
title The role of wild birds in the global highly pathogenic avian influenza H5 panzootic
topic Populations and Evolution
url https://arxiv.org/abs/2504.11910