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免疫是人和动物机体识别和清除抗原异物 ,保持体内、外环境平衡的一种生理反应。人类对免疫的研究已形成了免疫学这门新兴学科。近２０年来随着生物化学和分子生物学等学科的发展和渗透 ,这一学科产生了众多分支学科 ,从理论到实践取得了一系列重要进展，如发现了免疫应答的遗
Immunization is a physiological reaction of the human and animal body to identify and remove antigen foreign bodies and maintain the balance between the body and the external environment. Human immune research has formed a new discipline of immunology. In recent 20 years, with the development and infiltration of biochemistry and molecular biology disciplines, this discipline has produced many branches of discipline, from theory to practice made a series of important progress, such as the discovery of immune response