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 a Dairy Herd in Texas    
submitted by kickingbird at 2 hours ago from U.S. DEPARTMENT OF AGRICULTURE
On 5 October 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 a dairy herd ...

USDA: HPAI detection in Idaho    
submitted by kickingbird at 2 hours ago from U.S. DEPARTMENT OF AGRICULTURE
On 6 October, 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) in WOAH Non-poultry ...

USDA: HPAI detection in California    
submitted by kickingbird at 2 hours ago from U.S. DEPARTMENT OF AGRICULTURE
On 5 October, 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) in WOAH Non-poultry ...

Australia: H5 bird flu events    
submitted by kickingbird at 14 hours ago from Department of Agriculture, Fisheries and Forestry
As of 4pm AEST, 6 October 2026, Australia has 690 positive events of H5 bird flu in wildlife. 10 in Western Australia (WA) 327 in South Australia (SA) 68 in New South Wales (NSW) 2 in Queensland (QLD) ...

Küker, S., Pfeiffer, D.U., Kihm, U. et al. Highly pathogenic avian influenza as a systemic risk - implications for control and preparedness. npj Vet. Sci. 1, 21 (2026).  Abstract  
submitted by kickingbird at 1 hours ago from npj Vet. Sci. 1, 21 (2026)
Highly pathogenic avian influenza (HPAI) has evolved from episodic outbreaks into a globally entrenched, multi-host panzootic, with recurrent spillover into mammals. The expanding host range and increasing ...

Seo, YR., Lee, HE., Kim, DJ. et al. Multiple introductions and spread of novel reassortant highly pathogenic avian influenza A (H5N1) clade 2.3.4.4b viruses via wild birds, South Korea, 2024-2025. Vet Res 57, 178 (2026).  Abstract  
submitted by kickingbird at 1 hours ago from Vet Res 57, 178 (2026)
Between 14 October 2024 and 24 March 2025, 43 cases of clade 2.3.4.4b highly pathogenic avian influenza (HPAI) type A (H5N1) infections in wild birds and 1 case in a leopard cat were detected through the ...

Elizabeth Billington, etc.,al. [preprint]The mammalian-adaptive PB2-E627K substitution preserves viral fitness of clade 2.3.4.4b H5N1 HPAIV in birds. https://doi.org/10.64898/2026.10.06.757006.  Abstract  
submitted by kickingbird at 14 hours ago from https://doi.org/10.64898/2026.10.06.757006
Since emerging in 2020, clade 2.3.4.4b H5N1 high pathogenicity avian influenza virus (HPAIV) has disseminated globally, causing substantial infection and mortality in wild birds and poultry. Additionally, ...

Ruth N, Shakya M, Lewis CD, Erickson CE, Dolinski. Mallard super-shedders of avian influenza exhibit distinct cloacal microbial abundance profiles. Microbiol Spectr. 2026 Oct 6:e0208926.  Abstract  
submitted by kickingbird at 18 hours ago from Microbiol Spectr. 2026 Oct 6:e0208926
In many infectious disease systems, a small fraction of hosts accounts for a disproportionate share of transmission, but the biological basis of this heterogeneity remains poorly resolved. In avian influenza, ...

Del Rosario JMM, van Diemen PM, Frost SDW, Vishwan. A digitally immune-optimized influenza vaccine broadly neutralizes swine and human H1N1 influenza viruses and protects from heterologous challenge. J Virol. 2026 Oct 6:e0107326.  Abstract  
submitted by kickingbird at 18 hours ago from J Virol. 2026 Oct 6:e0107326
Influenza A virus (IAV) zoonotic transmission and continuous evolution in multiple host species heighten the risk of emerging novel strains at the human-animal interface. Digitally immune-optimized hemagglutinin ...