Robinson-McCarthy LR, Zirckel KE, Simmons HC, Le S. A replicating recombinant vesicular stomatitis virus model for dairy cattle H5N1 influenza virus glycoprotein evolution. J Virol 0:e00389-25
A panzootic of highly pathogenic avian influenza (HPAI) H5N1 viruses from clade 2.3.4.4b has triggered a multistate outbreak in US dairy cattle and an unknown number of human infections. HPAI viruses are handled in specialized biocontainment facilities. Ethical considerations limit certain evolution experiments aimed at assessing viral resistance to potential therapeutics. We have developed a replicating recombinant vesicular stomatitis virus (rVSV) where we replaced its glycoprotein with the hemagglutinin (HA) and neuraminidase (NA) genes of a 2.3.4.4b H5N1 virus (rVSV-H5N1dc2024), which enables these experiments to be performed under standard biosafety considerations. This virus grows to high titers and encodes a fluorescent reporter to track infection. We demonstrate the utility of rVSV-H5N1dc2024 in neutralization experiments, the evaluation of antibody escape, and the characterization of resistance mutations to NA inhibitors. rVSV-H5N1dc2024 or similar viruses may accelerate efforts to develop and evaluate interventions against this emerging threat to human and animal health.
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 14 hours ago
- Avian Influenza Weekly Update # 1026: 12 December 2025 1 days ago
[Go Top] [Close Window]


