Introduction: immunology as a historical object.
D000486:Allergy and Immunology / Q000266:history*; D006663:Historiography; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007107:Immune System; D007114:Immunization / Q000266:history; D007167:Immunotherapy / Q000266:history