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 Kent County Commercial Flock in Michigan    
submitted by kickingbird at 2 days ago from MDARD
Following an investigation by the Michigan Department of Agriculture and Rural Development (MDARD), the Michigan State University Veterinary Diagnostic Laboratory has detected the presence of highly pathogenic ...

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 ...

US: Highly Pathogenic Avian Influenza Confirmed in Walworth County and Jefferson County in Wisconsin    
submitted by kickingbird at 9 days ago from DATCP
The Wisconsin Department of Agriculture, Trade and Consumer Protection today announced a detection of HPAI in a commercial poultry flock in Walworth and Jefferson counties. DATCP and the U.S. Department ...

UK: Bird flu (avian influenza): latest situation in England    
submitted by kickingbird at 11 days ago from GOV.UK
3 March 2026Highly pathogenic avian influenza (HPAI) H5N1 was confirmed at a premises near Pickering, Thirsk and Malton, Yorkshire on 3 March 2026. A 3km protection zone and 10km surveillance zone were ...

Coombes HA, Terrey J, Schlachter AL, McCarter P, R. Infection of ratites with clade 2.3.4.4b HPAIV H5N1: Potential implications for zoonotic risk. Emerg Microbes Infect. 2026 Mar 13:2645853.  Abstract  
submitted by kickingbird at 5 hours ago from Emerg Microbes Infect. 2026 Mar 13:2645853
We detected H5N1 high pathogenicity avian influenza in captive Greater Rhea (Rhea americana). Viral genetic analysis revealed the mammalian associated PB2-E627 K mutation, indicating selection of mammalian-relevant ...

Kandeil A, Chopra P, Ray SD, Ghotekar BK, Ranadhee. Receptor-binding specificity and antigenic properties of a genotype D1.1 A(H5N1) influenza virus isolated from a human. Emerg Microbes Infect. 2026 Mar 13:2645856.  Abstract  
submitted by kickingbird at 5 hours ago from Emerg Microbes Infect. 2026 Mar 13:2645856
Clade 2.3.4.4b A(H5N1) influenza viruses continue to expand their host range and pose increasing public health concerns. A case of severe human infection with genotype D1.1 A(H5N1) with Hà substitutions ...

Sudarnika E, Pisestyani H, Idris S, Setiaji G, Iry. District-level joint risk assessment of highly pathogenic avian influenza H5N1 at the human-animal-environment interface in live bird markets of Bogor, Indonesia. Vet World. 2026;19(1):210–223.  Abstract  
submitted by kickingbird at 5 hours ago from Vet World. 2026;19(1):210–223
Background and aim: Highly pathogenic avian influenza (HPAI) A(H5N1) continues to be endemic in Indonesia, with live bird markets (LBMs) serving as key points for zoonotic transmission. While national ...

Cheng Samuel MS, Leung Nancy HL, Shiu Eunice Y, Wo. Population immunity, post-vaccine and post-infection antibody responses to influenza A (H3N2) subclade J.2 and K (J.2.4.1) viruses, Hong Kong, 2025. Euro Surveill. 2026;31(10):pii=2600185.  Abstract  
submitted by kickingbird at 5 hours ago from Euro Surveill. 2026;31(10):pii=2600185
We assessed haemagglutination inhibition (HAI) antibody titres against 2025 influenza A(H3N2) J.2 vaccine reference viruses and the novel subclade K (J.2.4.1) in age-stratified Hong Kong sera (collected ...

Mathis Funk et al. Polymerase trapping as the mechanism of H5 highly pathogenic avian influenza virus genesis. Science 391,eadr6632(2026).  Abstract  
submitted by kickingbird at 2 days ago from Science 391,eadr6632(2026)
Highly pathogenic avian influenza viruses (HPAIVs) derive from H5 and H7 low pathogenic avian influenza viruses (LPAIVs). Although insertion of a furin-cleavable multibasic cleavage site (MBCS) in the ...