Host entity

birds

Aves

Rankclass NCBI Taxon: 8782

Recent evidence findings

Evidence-grounded Research Brief · Past 3 months 18

Synthesizing linked evidence and source literature...

Generating an evidence-grounded brief with GPT-5...
11 source articles 8 viruses 4 countries
Publication date Category / type Key finding PMID
2026-09-22 Zoonotic Surveillance Viral Detection Clade 2.3.4.4b H5N1 HPAIV was detected in poultry and wild birds in Korea during the 2025–2026 winter season, with numerous outbreaks and cases reported. 42772571
2026-09-22 Zoonotic Surveillance Viral Detection Clade 2.3.4.4b H5N9 HPAIV was detected in poultry and wild birds in Korea during the 2025–2026 winter season. 42772571
2026-09-22 Zoonotic Surveillance Viral Detection Clade 2.3.4.4b H5N6 HPAIV was detected in poultry and wild birds in Korea during the 2025–2026 winter season. 42772571
2026-09 Genomic Evolution Phylogenetic Evolution The HA gene of the Bangladesh HPAI A(H5N1) clade 2.3.4.4b virus clusters with recent LBM-origin strains from Bangladesh, with an MRCA around July 2023. 42767772
2026-09 Transmission Evidence Outbreak Investigation An outbreak investigation identified H5N1 clade 2.3.4.4b infection in domestic cats associated with a concurrent backyard poultry HPAI outbreak in Italy, with one fatal feline case and one seroconversion in an exposed cat. 42679799
2026-09 Zoonotic Surveillance Viral Detection A reassortant A(H5N1) clade 2.3.4.4b virus was detected in commercial poultry in Bangladesh, indicating ongoing circulation. 42767772
2026-08-07 Zoonotic Surveillance Virus Isolation Five H9N2 avian influenza virus isolates were obtained from poultry in Pakistan between January and March 2023. 42566313
2026-08 Genomic Evolution Phylogenetic Evolution Co-circulation of genetically distinct HPAIV strains in high-density Arctic bird areas suggests local amplification and subsequent dissemination along migratory flyways. 42606890
2026-08 Genomic Evolution Phylogenetic Evolution Phylogenetic analysis of poultry-derived H9N2 isolates from Shandong showed a multi-lineage genome composition with PB2 and M from G1-like, PB1/PA/NP/NS from SH/F98-like, and HA/NA from Y280-like lineages, indicating reassortment. 42184734
2026-08 Zoonotic Surveillance Viral Detection In 2023, HPAIVs were detected in a broader range of bird species and retrospectively in an Atlantic walrus, with genotypes EA-2020-C (H5N1), EA-2021-I (H5N5), and EA-2022-BB (H5N1). 42606890
2026-07-30 Zoonotic Surveillance Virus Isolation Seven H6N1 avian influenza viruses were isolated from wild bird fecal samples in Mongolia during 2022–2024. 42533206
2026-07-30 Zoonotic Surveillance Virus Isolation H6N1 viruses were isolated from fecal samples of wild birds and domestic ducks in the Republic of Korea between September 2023 and April 2024. 42533206
2026-07-26 Transmission Evidence Outbreak Investigation HPAI H5N1 clade 2.3.4.4b is reported as causing a multi-species outbreak affecting wild birds, poultry, multiple mammalian species, and humans. 42539232
2026-07-22 Zoonotic Surveillance Virus Isolation One H3N8 and ten H3N3 avian influenza viruses were isolated from poultry samples in China. 42486182
2026-07-21 Genomic Evolution Phylogenetic Evolution Romanian H5N1 isolates cluster within Eurasian H5N1 lineages and are closely related to contemporary strains from Eastern Europe and Russia. 42515095
2026-07-17 Zoonotic Surveillance Viral Detection Avian influenza viruses were consistently detected from wild birds via annual sampling around Izembek National Wildlife Refuge, Alaska since 2011. 42469424
2026-07-17 Zoonotic Surveillance Reservoir Ecology Avian influenza viruses were consistently detected in wild birds in southwestern Alaska, with frequent intercontinental viral dispersal observed among this host population. 42469424
2026-07-17 Genomic Evolution Phylogenetic Evolution Following 2022 introductions of HPAIVs, the proportion of Eurasian-lineage gene segments in avian influenza viruses from wild birds in southwestern Alaska increased. 42469424
Evidence-grounded Research Brief · Past month 6

Synthesizing linked evidence and source literature...

Generating an evidence-grounded brief with GPT-5...
3 source articles 4 viruses 3 countries
Publication date Category / type Key finding PMID
2026-09-22 Zoonotic Surveillance Viral Detection Clade 2.3.4.4b H5N1 HPAIV was detected in poultry and wild birds in Korea during the 2025–2026 winter season, with numerous outbreaks and cases reported. 42772571
2026-09-22 Zoonotic Surveillance Viral Detection Clade 2.3.4.4b H5N9 HPAIV was detected in poultry and wild birds in Korea during the 2025–2026 winter season. 42772571
2026-09-22 Zoonotic Surveillance Viral Detection Clade 2.3.4.4b H5N6 HPAIV was detected in poultry and wild birds in Korea during the 2025–2026 winter season. 42772571
2026-09 Genomic Evolution Phylogenetic Evolution The HA gene of the Bangladesh HPAI A(H5N1) clade 2.3.4.4b virus clusters with recent LBM-origin strains from Bangladesh, with an MRCA around July 2023. 42767772
2026-09 Transmission Evidence Outbreak Investigation An outbreak investigation identified H5N1 clade 2.3.4.4b infection in domestic cats associated with a concurrent backyard poultry HPAI outbreak in Italy, with one fatal feline case and one seroconversion in an exposed cat. 42679799
2026-09 Zoonotic Surveillance Viral Detection A reassortant A(H5N1) clade 2.3.4.4b virus was detected in commercial poultry in Bangladesh, indicating ongoing circulation. 42767772
Evidence-grounded Research Brief · Past week 0

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0 source articles 0 viruses 0 countries
Publication date Category / type Key finding PMID
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Linked viruses

Virus composition linked to this host

101 virus taxa

Geographic evidence

Evidence distribution by country

53 countries

Temporal evidence

Evidence dynamics by year

188 year-type groups

Publication output

Source articles by month

702 months