ArticleVeterinary and animal science2023
First report and genetic characterization of the highly pathogenic avian influenza A(H5N1) virus in Cabot's tern (
Article in Veterinary and animal science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Detection of Divergent Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus, São Paulo, Brazil, 2025.Emerging infectious diseases · 2026Article
- Article
- Detection of H5N1-Related PB1 Sequences in a Low Pathogenic H11N2 Virus from South American Migratory Shorebirds.Viruses · 2026Article
- First detection of an H5N2 subtype of Influenza A virus detected in Charadrius collaris from the Brazilian Pantanal.Scientific reports · 2026Article
- Emergence of novel highly pathogenic H5N1 avian influenza in slender-billed gulls (Open veterinary journal · 2026Article
- Emergence, spread, and impact of high-pathogenicity avian influenza H5 in wild birds and mammals of South America and Antarctica.Conservation biology : the journal of the Society for Conservation Biology · 2026Review
- The role of wild birds in the global highly pathogenic avian influenza H5 panzootic, 2020-2023.npj biodiversity · 2026Review
- H5N1 Clade 2.3.4.4b: Evolution, Global Spread, and Host Range Expansion.Pathogens (Basel, Switzerland) · 2025Review
- A Broad Wildlife Survey of Influenza A Virus in the Orinoco Flooded Savannas from Colombia: New Reports and Perspectives.Animals : an open access journal from MDPI · 2025Article
- Urban Coatis (Nasua nasua) Exposure to Alphainfluenzavirus influenzae.Emerging infectious diseases · 2025Article
- Article
- Highly Pathogenic Avian Influenza (HPAI) H5 Clade 2.3.4.4b Virus Infection in Birds and Mammals.Animals : an open access journal from MDPI · 2024Review
- Sequence-based epitope mapping of high pathogenicity avian influenza H5 clade 2.3.4.4b in Latin America.Frontiers in veterinary science · 2024Article
- Investigating whether H5N1 is a risk to human populations in Brazil.Revista da Sociedade Brasileira de Medicina Tropical · 2024Article
- Highly pathogenic avian influenza H5N1 virus infections in pinnipeds and seabirds in Uruguay: Implications for bird-mammal transmission in South America.Virus evolution · 2024Article
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Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In 2021, the H5N1 virus lineage 2.3.4.4b spread to the Americas, causing high mortality in wild and domestic avian populations. South American countries along the Pacific migratory route have reported wild bird deaths due to A/H5Nx virus since October 2022. However, limited genomic data resulted in no cases reported in Brazil until May 2023. Brazil reported its first case of highly pathogenic avian influenza virus (HPAI A/H5N1) in May 2023. The virus was detected in Cabot's tern specimen in Marataízes, Espírito Santo. Cases were also found in backyard poultry and other wild birds, but no human or commercial poultry cases occurred. HPAI poses risks to the poultry industry, food security, and public health. Researchers used next-gen sequencing and phylogenetic analysis to study the Brazilian sample. It confirmed its affiliation with the 2.3.4.4b clade and proximity to sequences from Chile and Peru. This sheds light on the spread and evolution of HPAI A/H5N1 in the Americas, emphasizing continuous monitoring to mitigate risks for both avian and human populations. Understanding the virus's genetics and transmission allows implementing effective control measures to protect public health and the poultry industry.
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