ArticleTransboundary and emerging diseases2021
Temporal dynamics and the influence of environmental variables on the prevalence of avian influenza virus in main wetlands in central Chile.
Article in Transboundary and emerging diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 19 citations in OpenAlex.
- Integrated region-specific modeling of H5 avian influenza in Asia using ENSO-based forecasts.One health (Amsterdam, Netherlands) · 2026Article
- Transboundary Spread and Ecological Drivers of HPAI H5N1 Clade 2.3.4.4b During the 2022-2023 Outbreak in Chile: An Integrated Genomic and Spatial Epidemiology Framework.Transboundary and emerging diseases · 2026Article
- Article
- Biodiversity Dynamics in a Ramsar Wetland: Assessing How Climate and Hydrology Shape the Distribution of Dominant Native and Alien Macrophytes.Plants (Basel, Switzerland) · 2025Article
- Spatio-temporal dynamics and drivers of highly pathogenic avian influenza H5N1 in Chile.Frontiers in veterinary science · 2024Article
- Detection and phylogenetic analysis of highly pathogenic A/H5N1 avian influenza clade 2.3.4.4b virus in Chile, 2022.Emerging microbes & infections · 2023Article
- Article
- An overview of avian influenza surveillance strategies and modes.Science in One Health · 2023Review
- Novel Low Pathogenic Avian Influenza H6N1 in Backyard Chicken in Easter Island (Rapa Nui), Chilean Polynesia.Viruses · 2022Article
- Avian influenza A virus susceptibility, infection, transmission, and antibody kinetics in European starlings.PLoS pathogens · 2021Article
- Avian Influenza in Wild Birds and Poultry: Dissemination Pathways, Monitoring Methods, and Virus Ecology.Pathogens (Basel, Switzerland) · 2021Review
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Authors and funding
11 authors at 5 institutions in 2 countries.
Funding
Abstract
Although wild birds are considered the main reservoir of the influenza A virus (IAV) in nature, empirical investigations exploring the interaction between the IAV prevalence in these populations and environmental drivers remain scarce. Chile has a coastline of more than 4000 kilometres with hundreds of wetlands, which are important habitats for both resident and inter-hemispheric migratory species. The aim of this study was to characterize the temporal dynamics of IAV in main wetlands in central Chile and to assess the influence of environmental variables on AIV prevalence. For that purpose, four wetlands were studied from September 2015 to June 2018. Fresh faecal samples of wild birds were collected for IAV detection by real-time RT-PCR. Furthermore, a count of wild birds present at the site was performed and environmental variables, such as temperature, rainfall, vegetation coverage (Normalized Difference Vegetation Index (NDVI)) and water body size, were determined. A generalized linear mixed model was built to assess the association between IAV prevalence and explanatory variables. An overall prevalence of 4.28% ± 0.28% was detected with important fluctuations among seasons, being greater during summer (OR = 4.87, 95% CI 2.11 to 11.21) and fall (OR = 2.59, 95% CI 1.12 to 5.97). Prevalence was positively associated with minimum temperature for the month of sampling and negatively associated with water body size measured two months before sampling, and NDVI measured three months before sampling. These results contribute to the understanding of IAV ecological drivers in Chilean wetlands providing important considerations for the global surveillance of IAV.
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