# Newcastle disease outbreaks in Spain

> Live situation record from CLSTR: https://clstr.news/situations/newcastle-disease-outbreaks-in-spain
> Updated: 2026-08-21T11:36:34.000Z. Sources: 4. Developments: 2.

Veterinary authorities in Castilla y León, Spain, have reported a Newcastle disease outbreak in the Arévalo region of Ávila, affecting 46,390 unvaccinated broiler chickens. 

This incident is part of a larger crisis in the region, bringing the total number of reported outbreaks to 29. The Ministry of Agriculture, Fisheries and Food reports that 1,810,447 birds are currently under sanitary restrictions. While the virus has spread to Segovia, Salamanca, and Zamora, the province of Valladolid remains the most heavily impacted area, with significant outbreaks in Olmedo, Tordesillas, and Íscar.

## Timeline

### 2026-08-21: Newcastle disease outbreak expands in Arévalo, Spain

A new Newcastle disease outbreak in Arévalo, Ávila, brings the total number of affected poultry in Spain to over 1.8 million birds across several provinces.

4 sources. https://clstr.news/cluster/newcastle-disease-outbreak-expands-in-arvalo-spain

### 2026-08-03: Newcastle disease kills 90% of birds at Kysuce poultry farm in Slovakia

Newcastle disease hit a Kysuce poultry farm in Slovakia, killing 90% of chicks and pullets; labs confirmed the disease, the farm was depopulated and disinfected, and a Czech‑origin illegal bird sale was fined.

3 sources. https://clstr.news/cluster/newcastle-disease-kills-90-of-birds-at-kysuce-poultry-farm-in-slovakia

---
Cite as: Newcastle disease outbreaks in Spain. CLSTR, https://clstr.news/situations/newcastle-disease-outbreaks-in-spain