第一节概述 免疫( Immunity)指免除疫病(传染病) 及抵抗多种疾病的发生。 Distinguishes self from"non-self Danger Hypothesis °“ Protection” from infection, tumors,etc o A response that may result in host tissue damage第一节 概述 免疫（Immunity）: 指免除疫病(传染病) 及抵抗多种疾病的发生。 • Distinguishes “self” from “non-self” • Danger Hypothesis • “Protection” from infection, tumors, etc. • A response that may result in host tissue damage