[Bilharzial granuloma - immunological aspects (author's transl)]

Living eggs of schistosoma are responsible for the tissular granulomatous reactions of the parasitized organism. It has been demonstrated that this process resorts to a reaction of delayed hypersensitivity related to the complex immunologic mechanisms involving egg specific antigens and immunocompetent cells (lympho-plasmocytic cells). In long duration infections, the granulomatous reaction disappears (endogenic desensitization by immunological processes).