Immunology is the study of the immune system and its reaction to pathogens, as well as its malfunctions (autoimmune diseases, allergies, rejection of organ transplants).
... vom subjektiven Geist (1837; 3rd ed., 1863) Kritische Erläuterungen des Hegelschen Systems (1840) Vorlesungen über Schelling (1842) System der Wissenschaft ...