[A case report of bird fancier's lung (author's transl)].

By a case of bird fancier's lung proved serologically by precipitin tests the importance of a detailed case history is being stressed since there is an increased frequency of exogenous allergic alveolitis. The paper shall contribute to an early diagnosis to avoid irreversible professional and non-professional damages. For all cases of manifest disease constistent avoidance of allergens is demanded.