Back to profile Contact person for... - EA (Evelien) Germeraad MSc News Vaccines offer longer term protection of layer hens in field study 11 februari 2025 | The 2 bird flu vaccines in a field study offer longer term protection to layer hens, but don’t prevent mortality after infection completely. Bird flu vaccines protect chickens in first phase field study 28 mei 2024 | Two bird flu vaccines currently being tested in a field study have been found to protect laying hens from the disease eight weeks after vaccination. Caging obligation for bird flu lifted throughout the Netherlands 25 april 2024 | In recent weeks, the bird flu virus H5N1 has no longer been found in dead or live wild birds and poultry. The caging obligation has been lifted.