TY - CHAP M1 - Book, Section TI - Hypersensitivity (Allergy) A1 - Levinson, Warren A1 - Chin-Hong, Peter A1 - Joyce, Elizabeth A. A1 - Nussbaum, Jesse A1 - Schwartz, Brian Y1 - 2022 N1 - T2 - Review of Medical Microbiology & Immunology: A Guide to Clinical Infectious Diseases, 17e AB - Hypersensitivityreactions are exaggerated or inappropriate immune responses to benign antigens. It is the immune response, not the antigens, that is harmful to the host. Usually, hypersensitivity reactions occur in response to external, or “non-self,” antigens (covered in this chapter), whereas autoimmune reactions (see Chapter 66) occur in response to internal, or “self,” antigens. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/24 UR - accessmedicine.mhmedical.com/content.aspx?aid=1190865015 ER -