Dual-route H5N1 vaccination induces systemic and mucosal immunity in murine and bovine models
Vaccine-induced immunity was consistent across species, supporting the translatability of the mouse model findings to cattle.
Highly Pathogenic Avian Influenza A(H5N1) Virus RNA in Bovine Semen, California, USA, 2024
Since March 2024, highly pathogenic avian influenza (HPAI) A(H5N1) virus has infected dairy cattle in the United States, prompting concern about novel transmission routes.
Rapid expansion of genotype D1.1 A(H5N1) influenza viruses in wild birds across North America during the 2024 migratory season
Tracking the emergence and rapid spread of D1.1 viruses in wild birds during the 2024 fall migration.
Characterisation of immune responses targeting highly pathogenic avian influenza A(H5) viruses in health-care workers in the Netherlands: an observational, cross-sectional analysis
An observational, cross-sectional study within the prospective Surveillance of Respiratory Viruses in Healthcare and Animal Workers in the Netherlands (SENTINEL) cohort.
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Scientific Papers
Avian Influenza Weekly Update Number 1039
This weekly situation report will highlight the most recent developments in the regional response.
Scientific Papers
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Reports
Avian influenza overview December 2025–February 2026
Overview of highly pathogenic avian influenza (HPAI) virus detections in poultry and captive birds (domestic birds), as well as in wild birds, that occurred in and outside Europe between 29 November 2025 and 27 February 2026.
Containment scenarios for post-spillover transmission chains of avian influenza H5N1 from poultry to humans
Authors evaluated how self-isolation of symptomatic cases and targeted vaccination of poultry farmers and their households affect transmission dynamics following a spillover event.
Increased contact transmission of contemporary Human H5N1 compared to Bovine and Mountain Lion H5N1 in a hamster model
These findings demonstrate that the Syrian hamster model complements existing animal models for influenza A virus research and expands the resources available for investigating the pathogenicity, transmissibility, and efficacy of countermeasures.
