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 ...

US: Highly Pathogenic Avian Influenza Detected in a Mixed Species Flock in Kossuth County in Iowa    
submitted by kickingbird at 1 days ago from Iowa Department of Agriculture & Land Stewardship
Jan. 22, 2026 - The Iowa Department of Agriculture and Land Stewardship and the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have detected a case of ...

China: Three human cases of avian influenza A(H9N2) reported in Guangxi Zhuang Autonomous Region, Jiangsu Province and Hubei Province    
submitted by kickingbird at 4 days ago from Avian Influenza Weekly Update # 1029: 16 January 2
From 9 to 15 January 2026, three new cases of human infection with avian influenza A(H9N2) virus were reported to WHO in the Western Pacific Region. All three cases were reported from China: The first ...

Canada: Highly pathogenic avian influenza in Quebec, January 15, 2026    
submitted by kickingbird at 4 days ago from Canadian Food Inspection Agency
The Canadian Food Inspection Agency (CFIA) has confirmed highly pathogenic avian influenza in Les-Jardins-de-Napierville Regional County Municipality, Quebec, in commercial poultry.The CFIA has advised ...

Canada: Highly pathogenic avian influenza in Quebec, January 15, 2026    
submitted by kickingbird at 4 days ago from Canadian Food Inspection Agency
The Canadian Food Inspection Agency (CFIA) has confirmed highly pathogenic avian influenza in Arthabaska Regional County Municipality, Quebec, in non-commercial poultry.The CFIA has advised the World Organisation ...

Mana Esaki, etc.,al. Genetically distinct H5N2 high pathogenicity avian influenza virus isolated from a peregrine falcon on Amami-Oshima Island, Japan, harboring enhanced pathogenicity-associated amino acids in the PA pro. Virology.  Abstract  
submitted by kickingbird at 3 hours ago from Virology
We report the first confirmed case of high pathogenicity avian influenza virus (HPAIV) infection in a peregrine falcon (Falco peregrinus) on Amami-Oshima Island, a region known for its unique biodiversity. ...

Liang Gong, etc.,al. Development of a dually-amplified analytical method for rapid, specific and ultrasensitive detection of avian influenza virus H5N1 DNA. Microchemical Journal.  Abstract  
submitted by kickingbird at 3 hours ago from Microchemical Journal
Influenza virus infections, particularly those caused by the Avian influenza virus, result in millions of deaths and substantial economic losses annually. Early diagnosis of the pathogen during the initial ...

Jonathan E. Pekar, etc.,al. Can H5N1 avian influenza in dairy cattle be contained in the US?. Cell.  Abstract  
submitted by kickingbird at 3 hours ago from Cell
The emergence and sustained spread of H5N1 in US dairy cattle since 2024 have demonstrated that highly pathogenic avian influenza (HPAI) is capable of establishing long-term transmission in livestock. ...

Brigleb PH, Sharp B, Lazure L, Livingston B, Patri. Immune history confers antibody- and T cell-dependent cross-protection against highly pathogenic avian influenza H5N1 viruses. J Virol 0:e02088-25.  Abstract  
submitted by kickingbird at 3 hours ago from J Virol 0:e02088-25
The outbreak of highly pathogenic avian H5 influenza (HPAI) clade 2.3.4.4b in cattle has spread across the United States. Mice with pre-existing immunity to H1N1 virus or with a live-attenuated influenza ...

Puente-Massaguer, E., Galdino Andrade, T., Scherm,. An H5N1 clade 2.3.4.4b virus vaccine that elicits cross-protective antibodies against conserved domains of H5 and N1 glycoproteins. Nat Commun (2026).  Abstract  
submitted by kickingbird at 3 hours ago from Nat Commun (2026)
The continuous evolution and global spread of highly pathogenic avian influenza (HPAI) H5N1 viruses, particularly clade 2.3.4.4b, pose major challenges for pandemic preparedness. This study evaluates a ...