Appreciation of the role of the immune system in health and disease has accelerated rapidly in recent years. In the early days, study of immunity focused on microbial infections, vaccines, and anaphylaxis. As biomedical research advanced, the relevance of the immune response extended to clinical fields such as cancer, autoimmunity, transplantation, and AIDS. The disciplines of diagnostic immunology, immunomodulation, immunotherapeutics, and immunogenetics have recently emerged.
Li JT. Immunology. JAMA. 2006;295(12):1453–1458. doi:10.1001/jama.295.12.1456
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