Overview

• The national reference lab in Algete validated HPAI H5N1 at a large laying‑hen facility in Olmedo after the farm reported a slight rise in mortality.
• Castilla y León established a 3 km protection zone and a 10 km surveillance zone, immobilized the holding, and began cleaning and disinfection alongside an epidemiological inquiry.
• The Agriculture Ministry also confirmed avian influenza in two white storks found in the Guadiamar area near Doñana, with Andalucía maintaining heightened wildlife surveillance.
• The Olmedo case is the sixth domestic‑bird outbreak in Spain this year and the first in Castilla y León, with 38 detections recorded in wild birds nationwide.
• Authorities say properly cooked poultry and eggs are safe, workers’ risk is considered low, and veterinary bodies urge PPE, strict biosecurity and seasonal flu vaccination for farm staff.