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免疫(immunity)是指机体具有识别外来抗原性因子并加以排斥,保持机体内环境稳定的三种机能,即所谓免疫监视、异物排斥和自身稳定。已经证实,许多疾病的发生、发展与机体的免疫功能有密切的关系。免疫缺陷或免疫过盛均可导致疾病。近代免疫学迅速发展,超越了传统的抗传染病免疫的范畴,提出了免疫反应病与免疫抑制疗法,临床应用日益广泛。
Immunity means that the body has three functions of recognizing and removing external antigenic factors and keeping the environment in the body stable, that is, so-called immune surveillance, foreign body rejection and self-stability. Has confirmed that many diseases, the development and the body’s immune function are closely related. Immune deficiencies or hypersensitivity can lead to disease. Modern rapid development of immunology, beyond the traditional category of immunization against infectious diseases, put forward the immune response and immunosuppressive therapy, clinical application is increasingly widespread.