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免疫是机体识别和清除抗原性异物,以维持机体内外环境相对稳定所发生的一系列反应。包括先天形成的非特异性免疫能力和后天获得的特异性免疫功能。当机体免疫力正常时,免疫具有三大功能:1.免疫防御功能即帮助机体阻止和清除各种病原微生物和抗原生物的侵袭,起到抵抗传染病的作
Immunization is the body to identify and remove antigenic foreign body, in order to maintain the body’s internal and external environment is relatively stable, a series of reactions. Including innate formation of non-specific immunity and acquired specific immune function. When the body immunity is normal, the immune has three major functions: 1. Immune defense function that is to help the body stop and remove the invasion of various pathogenic microorganisms and antigen organisms, play a role in resistance to infectious diseases