China´s Scientists Make Breakthrough on How H5N1 Influenza Occurred in the U.S.    
submitted by kickingbird at Jul, 9, 2025 from CASAD
Chinese scientists have found out how the H5N1 virus initially invades the mammary glands of dairy cattle and may have triggered the outbreak of H5N1 avian influenza across over 1,000 dairy farms in the ...

China: Two human cases of avian influenza A(H9N2) reported in Guangdong Province and Hunan Province, one human case of avian influenza A(H10N3) reported in Guangdong Province    
submitted by kickingbird at 1 days ago from Avian Influenza Report (Vol 22, No.6 (Week 6))
Avian influenza A(H9N2): Guangdong Province: A 73-year-old woman with onset on January 17, 2026.Hunan Province: A 2-year-old boy with onset on December 29, 2025.Avian influenza A(H10N3):Guangdong Province: ...

GISAID: H5N1 Bird Flu continues to circulate in the United States    
submitted by kickingbird at 3 days ago from GISAID
Clade 2.3.4.4b of the highly pathogenic avian influenza (HPAI) virus causing outbreaks in wild and domestic birds around the world, continues to spread in dairy cows, poultry and other animals across the ...

Canada: Highly pathogenic avian influenza in Nova Scotia, February 4, 2026    
submitted by kickingbird at 5 days ago from Canadian Food Inspection Agency
The Canadian Food Inspection Agency (CFIA) has confirmed highly pathogenic avian influenza in Yarmouth County, Nova Scotia, in non-commercial non-poultry.The CFIA has advised the World Organisation for ...

UK: Bird flu (avian influenza): latest situation in England    
submitted by kickingbird at 12 days ago from GOV.UK
30 January 2026 Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in a small poultry flock near Needham Market, Mid Suffolk, Suffolk (AIV 2026/12). A 3km protection zone and 10km surveillance ...

Bjorn Koel, etc.,al. [preprint]Emergence and antigenic characterisation of influenza A(H3N2) viruses with hemagglutinin substitutions N158K and K189R during the 2024/25 influenza season. https://doi.org/10.64898/2026.02.10.704996.  Abstract  
submitted by kickingbird at 10 hours ago from https://doi.org/10.64898/2026.02.10.704996
Background Seasonal human influenza viruses can escape from antibody-mediated neutralization when amino acid changes occur in the hemagglutinin protein. Routine surveillance identified circulation of an ...

Daiki Mori, Nicolas Sax, Nozomi Shimada, Mana Kuwa. Epitope specificity shapes the CD4+ T cell response to influenza virus infection in mice. International Immunology, 2026;, dxag008.  Abstract  
submitted by kickingbird at 10 hours ago from International Immunology, 2026;, dxag008
Helper CD4+ T cells play a central role in orchestrating protective immune responses during infection and vaccination. Activation of na?ve CD4+ T cells is initiated by the recognition of antigenic peptides ...

Lejeune M, Tornos J, Bralet T, De Pasquale C, Mar?. Vaccination against H5 HP avian influenza virus leads to persistent immune response in wild king penguins. Nat Commun. 2026 Feb 9;17(1):1395.  Abstract  
submitted by kickingbird at 1 days ago from Nat Commun. 2026 Feb 9;17(1):1395
Since 2021, the panzootic nature of high pathogenicity avian influenza (HPAI) represents an increasing threat to wild vertebrate populations. In this context, recent vaccines developed for poultry could ...

Ichikawa Y, Saito R, Chon I, Phyu WW, Kyaw Y, Win. Molecular Epidemiology and Genetic Diversity of Influenza B Viruses Based on Whole-Genome Analysis in Japan and Myanmar, 2016-2020. Influenza Other Respir Viruses. 2026 Feb;20(2):e70.  Abstract  
submitted by kickingbird at 1 days ago from Influenza Other Respir Viruses. 2026 Feb;20(2):e70
Background: Influenza B virus (IBV) contributes to seasonal epidemics, but its molecular evolution is less defined than influenza A. We analyzed IBVs collected in Japan and Myanmar (2016-2020) to investigate ...

Fang, K., Li, J., Zhao, H. et al. Assessing HPAI-H5 transmission risk across wild bird migratory flyways in the United States. Nat Commun (2026).  Abstract  
submitted by kickingbird at 1 days ago from Nat Commun (2026)
As natural hosts of avian influenza viruses, wild birds pose an increasing threat to public health. Here, using surveillance data from wild bird infections across the United States (2022-2025), we show ...