ArticleInfluenza and other respiratory viruses2018
Migratory birds in southern Brazil are a source of multiple avian influenza virus subtypes.
Article in Influenza and other respiratory viruses, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.
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17 citing papers in PubMed, 30 citations in OpenAlex.
- Novel emerging reassortant H6 avian influenza viruses with internal genes from G57 genotype of H9N2 pose potential zoonotic risk.Emerging microbes & infections · 2026Article
- Detection of H5N1-Related PB1 Sequences in a Low Pathogenic H11N2 Virus from South American Migratory Shorebirds.Viruses · 2026Article
- Molecular epidemiological surveillance of circovirus in avian and mammalian species on the Brazilian coast.Archives of virology · 2026Article
- Emergence, migration and spreading of the high pathogenicity avian influenza virus H5NX of the Gs/Gd lineage into America.The Journal of general virology · 2025Review
- Whole genome sequencing of low pathogenicity avian influenza virus (H6N2) detected from a Brazilian teal (Microbiology resource announcements · 2024Article
- Transboundary determinants of avian zoonotic infectious diseases: challenges for strengthening research capacity and connecting surveillance networks.Frontiers in microbiology · 2024Review
- Geographical distribution and evolutionary dynamics of H4Nx avian influenza viruses.Frontiers in microbiology · 2024Article
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- A Quick Review of the Prevalence of Important Infectious Poultry Diseases all Around the World.Recent advances in food, nutrition & agriculture · 2024Review
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- Molecular Characterization and Pathogenesis of H6N6 Low Pathogenic Avian Influenza Viruses Isolated from Mallard Ducks (Viruses · 2022Article
- Australia as a global sink for the genetic diversity of avian influenza A virus.PLoS pathogens · 2022Article
- Mouse adaptation of H6 avian influenza viruses and their molecular characteristics.Frontiers in microbiology · 2022Article
- Characterization of Subtype H6 Avian Influenza A Viruses Isolated From Wild Birds in Poyang Lake, China.Frontiers in veterinary science · 2021Article
- Discovery of novel astrovirus and calicivirus identified in ruddy turnstones in Brazil.Scientific reports · 2019Article
- Divergent coronaviruses detected in wild birds in Brazil, including a central park in São Paulo.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2019Article
- Migratory birds in southern Brazil are a source of multiple avian influenza virus subtypes.Influenza and other respiratory viruses · 2018Article
Corrections and comments
- Erratum issuedCorrigendum.2018
Authors and funding
13 authors at 4 institutions in 2 countries.
Funding
Abstract
backgroundThere is insufficient knowledge about the relation of avian influenza virus (AIV) to migratory birds in South America. Accordingly, we studied samples obtained over a 4-year period (2009-2012) from wild birds at a major wintering site in southern Brazil.
methodsWe obtained 1212 oropharyngeal/cloacal samples from wild birds at Lagoa do Peixe National Park and screened them for influenza A virus by RT-PCR amplification of the matrix gene. Virus isolates were subjected to genomic sequencing and antigenic characterization.
resultsForty-eight samples of 1212 (3.96%) contained detectable influenza virus RNA. Partial viral sequences were obtained from 12 of these samples, showing the presence of H2N2 (1), H6Nx (1), H6N1 (8), H9N2 (1), and H12N5 (1) viruses. As H6 viruses predominated, we generated complete genomes from all 9 H6 viruses. Phylogenetic analyses showed that they were most similar to viruses of South American lineage. The H6N1 viruses caused no disease signs in infected ferrets and, despite genetic differences, were antigenically similar to North American isolates.
conclusionsLagoa do Peixe National Park is a source of multiple AIV subtypes, with the levels of influenza virus in birds being highest at the end of their wintering period in this region. H6N1 viruses were the predominant subtype identified. These viruses were more similar to viruses of South American lineage than to those of North American lineage.
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