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: A human case of avian influenza A(H9N2) reported in Yunnan Province    
submitted by kickingbird at 2 days ago from WHO
From 29 May to 4 June 2026, one new case of human infection with avian influenza A(H9N2) virus was reported to WHO in the Western Pacific Region. The case is a male child from Yunnan Province, China, with ...

US: Highly Pathogenic Avian Influenza Detected in Texas Dairy Herd    
submitted by kickingbird at 5 days ago from The Texas Animal Health Commission
The Texas Animal Health Commission (TAHC) and United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) received confirmation of the presence of highly pathogenic ...

US: Dairy HPAI Detected in Cache County in Utah    
submitted by kickingbird at 6 days ago from Utah Department of Agriculture and Food
On June 1, 2026, officials with the Utah Department of Agriculture and Food (UDAF) were notified of a sample from a dairy in Cache County that tested positive for highly pathogenic avian influenza (HPAI). ...

China: A human case of avian influenza A(H9N2) reported in Guangxi Zhuang Autonomous Region    
submitted by kickingbird at 8 days ago from WHO
From 22 to 28 May 2026, one new case of human infection with avian influenza A(H9N2) virus was reported to WHO in the Western Pacific Region. The case is an elderly female from Guangxi Zhuang Autonomous ...

Ytrehus, Bj?rnar, Granstad, Silje, Gjerset, Brit,. The surveillance programme for avian influenza (AI) in Norwegian wildlife 2025. Norwegian Veterinary Institute.  Abstract  
submitted by kickingbird at 7 hours ago from Norwegian Veterinary Institute
2025The current surveillance report is part of Norway’s contribution to the European Union’s Surveillance Programme for avian influenza in poultry and wild birds and reports the surveillance of wild birds ...

Granstad, Silje, Fosse, Johanna Hol, Åkerstedt, Johan. The surveillance programme for avian influenza (AI) in poultry in Norway 2025. Norwegian Veterinary Institute.  Abstract  
submitted by kickingbird at 7 hours ago from Norwegian Veterinary Institute
The reported surveillance is part of Norway’s contribution to the European Union Surveillance Programme for avian influenza and describes active surveillance of poultry. Active surveillance based on serological ...

Chen M, Liang Y, et al. Emergence of Novel Reassortant H3N2 Avian Influenza Viruses in Southern China: Genetic Complexity and Pathogenicity in Chickens and Mice. Animals. 2026; 16(12):1765.  Abstract  
submitted by kickingbird at 8 hours ago from Animals. 2026; 16(12):1765
H3N2 avian influenza virus (AIV) is prevalent in poultry and wild birds; however, certain strains possess the potential to evolve and cross the species barrier, thus posing a significant threat to public ...

Crispo M, Gaide N, Croville G, Walch M, Fusade-Boy. Pathological evidence of neurotropism and oculotropism in wild black-headed gulls naturally infected with H5N1 high pathogenicity avian influenza. Sci Rep. 2026 Jun 8.  Abstract  
submitted by kickingbird at 8 hours ago from Sci Rep. 2026 Jun 8
Clade 2.3.4.4b H5Nx high pathogenicity avian influenza viruses (HPAIVs) have caused extensive mortality in wild birds, particularly colonial seabirds, since 2020. Among them, black-headed gulls (Chroicocephalus ...

Liu F, Gross FL, Li Z, House SL, Curley T, Saade E. Birth cohort effects in adults associated with influenza A(H1N1)pdm09 vaccine effectiveness. J Infect Dis. 2026 Jun 8:jiag294.  Abstract  
submitted by kickingbird at 20 hours ago from J Infect Dis. 2026 Jun 8:jiag294
Background: In the 2023-24 influenza season, adults born in the 1957-1985 birth cohort had the lowest vaccine effectiveness (VE) against A(H1N1)pdm09 viruses than other age groups, including those in the ...