ArticleScientific reports2023
North American wintering mallards infected with highly pathogenic avian influenza show few signs of altered local or migratory movements.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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27 citing papers in PubMed.
- Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife.Biological reviews of the Cambridge Philosophical Society · 2026Review
- Skuas as sentinels of high pathogenicity avian influenza H5N1 on the Antarctic Peninsula in the 2024/2025 austral summer.Microbial genomics · 2026Article
- Surveillance of Migratory Shorebirds and Seabirds in 2024 in Australia Reveals Incursions of a Diversity of Low Pathogenicity Avian Influenza Viruses, but Not High Pathogenicity Avian Influenza H5N1.Influenza and other respiratory viruses · 2026Article
- The role of wild birds in the global highly pathogenic avian influenza H5 panzootic, 2020-2023.npj biodiversity · 2026Review
- Quantifying iris pigmentation irregularities following an avian influenza outbreak: implications for population-level disease surveillance in a colonial seabird.Conservation physiology · 2026Article
- Waterfowl Move Less in Heterogeneous and Human-Populated Landscapes, With Implications for Spread of Avian Influenza Viruses.Ecology letters · 2026Article
- Article
- A taxonomically harmonized global dataset of wild bird hosts for avian influenza virus surveillance.Scientific data · 2025Article
- Reassortment of newly emergent clade 2.3.4.4b A(H5N1) highly pathogenic avian influenza A viruses in Bangladesh.Emerging microbes & infections · 2025Article
- Balancing opposing cues: seasonal shifts in push-pull drivers of migration in a temperate waterfowl species.Movement ecology · 2025Article
- Spatiotemporal Overlap of Mallards With Poultry Farms Is Associated With Greater Risk of Avian Influenza Wild Bird Spillover Events.Ecology and evolution · 2025Article
- Host responses and viral traits interact to shape the impacts of climate warming on highly pathogenic avian influenza in migratory waterfowl.PLoS computational biology · 2025Article
- Highly Pathogenic Avian Influenza (H5N1) Clade 2.3.4.4b in Cattle: A Rising One Health Concern.Animals : an open access journal from MDPI · 2025Review
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- Towards transient space-use dynamics: re-envisioning models of utilization distribution and their applications.Movement ecology · 2025Article
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- Mallard Hybridization With Domesticated Lineages Alters Spring Migration Behavior and Timing.Ecology and evolution · 2025Article
- Transmission dynamics of highly pathogenic avian influenza virus at the wildlife-poultry-environmental interface: A case study.One health (Amsterdam, Netherlands) · 2024Article
- Influenza A Virus Antibodies in Ducks and Introduction of Highly Pathogenic Influenza A(H5N1) Virus, Tennessee, USA.Emerging infectious diseases · 2024Article
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13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Avian influenza viruses pose a threat to wildlife and livestock health. The emergence of highly pathogenic avian influenza (HPAI) in wild birds and poultry in North America in late 2021 was the first such outbreak since 2015 and the largest outbreak in North America to date. Despite its prominence and economic impacts, we know relatively little about how HPAI spreads in wild bird populations. In January 2022, we captured 43 mallards (Anas platyrhynchos) in Tennessee, USA, 11 of which were actively infected with HPAI. These were the first confirmed detections of HPAI H5N1 clade 2.3.4.4b in the Mississippi Flyway. We compared movement patterns of infected and uninfected birds and found no clear differences; infected birds moved just as much during winter, migrated slightly earlier, and migrated similar distances as uninfected birds. Infected mallards also contacted and shared space with uninfected birds while on their wintering grounds, suggesting ongoing transmission of the virus. We found no differences in body condition or survival rates between infected and uninfected birds. Together, these results show that HPAI H5N1 clade 2.3.4.4b infection was unrelated to body condition or movement behavior in mallards infected at this location during winter; if these results are confirmed in other seasons and as HPAI H5N1 continues to evolve, they suggest that these birds could contribute to the maintenance and dispersal of HPAI in North America. Further research on more species across larger geographic areas and multiple seasons would help clarify potential impacts of HPAI on waterfowl and how this emerging disease spreads at continental scales, across species, and potentially between wildlife and domestic animals.
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