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免疫力是人体的屏障力,分为特异性和非特异性两大类。特异性免疫是特异性传染性致病病因侵袭的屏障,天花的绝迹就是人体特异性免疫的结果,对人类的贡献是巨大的。特异性实质就是专一性、
Immunity is the body’s barrier, divided into two categories of specificity and non-specific. Specific immunity is a barrier to specific infectious pathogenic factors, the disappearance of smallpox is the result of human-specific immunity, the contribution to human beings is huge. Specificity is the specificity of specificity,