[Blue wing disease and chicken anemia agent in broilers].

Cases of typical dermatitis were observed on nineteen broiler farms in the province of Gelderland, the Netherlands, ever since 1984. These bloody inflammations occasionally caused a large number of rejects, particularly during the second and third weeks of life. A relationship with Gumboro disease was identified in a number of cases. The causative agent probably is a virus originating from birds of the broiler-breeding poultry flocks. This may possibly be the Chicken Anaemia Agent virus.