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 ...

USDA: Confirms Highly Pathogenic Avian Influenza (H5N1) in Dairy Herds in Idaho    
submitted by kickingbird at 18 hours ago from U.S. DEPARTMENT OF AGRICULTURE
On 9 June 2026, the U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed the detection of highly pathogenic avian influenza (HPAI) H5N1 in 5 dairy herds ...

USDA: Confirms Highly Pathogenic Avian Influenza (H5N1) in Dairy Herds in Idaho    
submitted by kickingbird at 18 hours ago from U.S. DEPARTMENT OF AGRICULTURE
On 8 June 2026, the U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed the detection of highly pathogenic avian influenza (HPAI) H5N1 in 25 dairy herds ...

China: A human case of avian influenza A(H9N2) reported in Yunnan Province    
submitted by kickingbird at 3 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 4-year-old male child from Yunnan Province, ...

US: Highly Pathogenic Avian Influenza Detected in Texas Dairy Herd    
submitted by kickingbird at 7 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 ...

Reneer ZB, Ngyen C, Corn MR, Paugh JL, Reynolds OC. Antigenic mapping of H2 influenza viruses recognized by ferret and human sera and predicting antigenically significant sites. mSphere. 2026 Jun 10:e0002226.  Abstract  
submitted by kickingbird at 7 hours ago from mSphere. 2026 Jun 10:e0002226
Influenza viruses cause hundreds of thousands of infections globally every year. In the past century, seasonal influenza viruses have included H1N1, H2N2, and H3N2 strains. H2N2 influenza viruses circulated ...

Chen T, Huang Q, Chen X, Zhu J, Kong D, Liao X, Li. Trimeric hemagglutinin vaccine provides chickens complete protection against lethal H5 subtype avian influenza virus from clade 2.3.4.4b. Emerg Microbes Infect. 2026 Dec;15(1):2678649.  Abstract  
submitted by kickingbird at 7 hours ago from Emerg Microbes Infect. 2026 Dec;15(1):2678649
H5 subtype highly pathogenic avian influenza virus (HPAIV) of clade 2.3.4.4b has prevailed globally, causing economic losses in the poultry industry and posing zoonotic threats. While inactivated vaccines ...

Zhu S, Quint J, León TM, Sun M, Li NJ, Yen C, Flan. Influenza Vaccine and Associated Infection and Death in California, 2024 to 2025. JAMA Netw Open. 2026 Jun 1;9(6):e2617684.  Abstract  
submitted by kickingbird at 7 hours ago from JAMA Netw Open. 2026 Jun 1;9(6):e2617684
Importance: Effectiveness of seasonal influenza vaccine must be assessed annually as influenza viruses evolve, requiring updated vaccine components. Evidence is limited for direct vaccine benefit in lowering ...

Peng M, Liu L, Li X, Yu X, Yin Q, Zhang X, Han S,. Pre-pandemic contraction, phase-specific rate variation, and site-specific antigenic adaptation shape influenza A(H3N2) evolutionary dynamics in Hubei, China. J Virol. 2026 Jun 10:e0055626.  Abstract  
submitted by kickingbird at 7 hours ago from J Virol. 2026 Jun 10:e0055626
Influenza A(H3N2) is a contributor to seasonal epidemics, yet its evolution during and after the COVID-19 pandemic is not fully understood. We analyzed surveillance data and hemagglutinin (HA) and neuraminidase ...

Seo JH, Seo YJ, Ryu HY, Shin M, Lee CY. Current insights into bacterial secondary infection following influenza A virus infection. Front Microbiol. 2026 May 25;17:1851115.  Abstract  
submitted by kickingbird at 7 hours ago from Front Microbiol. 2026 May 25;17:1851115
Influenza A virus (IAV) continues to pose a substantial challenge to global health, not merely through primary viral pneumonia but largely due to lethal secondary bacterial complications. Pathogens such ...