Avian influenza overview June–September 2025
EFSA
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September 25 2025
Between 7 June and 5 September 2025, 183 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (27) and wild (156) birds across 15 countries in Europe. Although HPAI A(H5N1) virus detections were predominant in western and southwestern Europe, they also occurred on the northernmost coast of Norway. More than 75% of the detections in wild birds related to colony-breeding seabirds, particularly European herring gulls, while the number of detections in waterfowl decreased compared to the previous months. Less poultry establishments were affected during the current reporting period, with no secondary spread occurring.
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