Simancas-Racines A, Reytor-González C, Toral M, Si. H5N1 Avian Influenza: A Narrative Review of Scientific Advances and Global Policy Challenges. Viruses. 2025; 17(7):927
The H5N1 avian influenza virus continues to evolve into genetically diverse and highly pathogenic clades with increased potential for cross-species transmission. Recent scientific advances have included the development of next-generation vaccine platforms, promising antiviral compounds, and more sensitive diagnostic tools, alongside strengthened surveillance systems in both animals and humans. However, persistent structural challenges hinder global readiness. Vaccine production is heavily concentrated in high-income countries, limiting equitable access during potential pandemics. Economic and logistical barriers complicate the implementation of control strategies such as vaccination, culling, and compensation schemes. Gaps in international coordination, public communication, and standardization of protocols further exacerbate vulnerabilities. Although sustained human-to-human transmission has not been documented, the severity of confirmed infections and the rapid global spread among wildlife and domestic animals underscore the urgent need for robust preparedness. International organizations have called for comprehensive pandemic response plans, enhanced multisectoral collaboration, and investment in targeted research. Priorities include expanding surveillance to asymptomatic animal hosts, evaluating viral shedding and transmission routes, and developing strain-specific and universal vaccines. Strengthening global cooperation and public health infrastructure will be critical to mitigate the growing threat of H5N1 and reduce the risk of a future influenza pandemic.
See Also:
Latest articles in those days:
- [preprint]Mass mortality at penguin mega-colonies due to avian cholera confounds H5N1 HPAIV surveillance in Antarctica 9 hours ago
- [preprint]How the 1918-1920 Influenza Pandemic Spread Across Switzerland - Spatial Patterns and Determinants of Incidence and Mortality 9 hours ago
- Influenza C Virus in Children With Acute Bronchiolitis and Febrile Seizures 13 hours ago
- Feasibility and Safety of Aerosolized Influenza Virus Challenge in Humans Using Two Modern Delivery Systems 13 hours ago
- Avian Influenza Weekly Update # 1026: 12 December 2025 1 days ago
[Go Top] [Close Window]


