近十年来免疫学发展非常迅速,以往之变态反应(现称超敏感性)的分类一般是基于解剖的结构,或基于变应原的性质。现代超敏感性认为是通过外源性或内源性的抗原和特异性体液的抗体或特异的被致敏的淋巴细胞的相互作用而中介的。这些作用的多种后果可以说明多种临床表现。因此说,超敏感性的过程确可概括很广泛的不相同的疾 Immunology has developed very rapidly in the past decade. The classification of past allergy (now hypersensitivity) is generally based on the anatomical structure or on the basis of the nature of the allergen. Modern hypersensitivity is thought to be mediated through the interaction of exogenous or endogenous antigens with specific humoral antibodies or with specific sensitized lymphocytes. A variety of consequences of these effects can explain a variety of clinical manifestations. Therefore, the hypersensitivity process can be summarized in a very wide range of different diseases