Abstract: The invention is directed to biological response modifiers (BRM) which may contain one or more compounds, and to methods for enhancement of an immune system with BRMs of the invention including augmenting a specific immune response either prophylactically or for treatment, as an adjuvant or vaccine when coupled with a pathogenic antigen, and for boosting an immune system generally. The invention is also directed to the reduction of an unrestrained or improper inflammatory response and/or an immune response such as to treat or prevent autoimmune diseases and disorders, and associated symptoms. Further, the invention is directed to the manufacture of BRM compounds comprising isolated serum from a mammal, and subjecting that serum to tangential flow chromatography and molecular weight cut-off dialysis to obtain one or more purified BRM compounds suitable for administration to a patient in need.