Fall Migration Brings Renewed HPAI Risk — Practice Biosecurity in the Field
The Pennsylvania Department of Agriculture has confirmed a new case of Highly Pathogenic Avian Influenza (HPAI) in a commercial flock in Lancaster County. This detection serves as a timely reminder that fall waterfowl migration is underway, increasing the risk of virus movement across the state.
While most attention focuses on poultry operations, conservation professionals, district staff, and others who regularly visit farms also play a key role in limiting disease spread. HPAI viruses are primarily transmitted through direct contact with infected wild birds or through equipment, vehicles, and footwear contaminated with the feces or other fluids of wild birds.
Why It Matters
Wild birds can shed the virus without showing symptoms, contaminating soil, water, and surfaces.
Anyone moving between farms, fields, and other areas where birds congregate could inadvertently transfer the virus.
Simple Steps to Reduce Risk
- Clean and disinfect boots and equipment before and after visiting each site or farm.
- Use designated footwear or disposable boot covers when possible.
- Schedule downtime between visiting poultry and dairy operations.
- Avoid contact with domestic poultry or their housing areas during and after visits to other areas where wild birds congregate.
- Clean and disinfect clothing, boots, equipment, and vehicles used during wild bird or fishing recreational activities, or use separate gear for these activities.
- Report sick or dead wild birds to the Pennsylvania Game Commission Wildlife Health Unit.
- Stay informed through the PDA website and HPAI tracker map for updated detections and guidance.
Even small actions can make a big difference in preventing the spread of avian influenza between wild birds and domestic flocks.
For more information and resources on biosecurity practices, visit Penn State Extension's Avian Influenza page.
