免疫功能对人体的作用就像一把双刃剑,既起到了保护作用,也并不都是有利的。这样的例子很多:当免疫系统对一些原本无害的物质,如植物的花粉、牛奶的蛋白质、鱼虾等大动干戈时,就造成荨麻疹,哮喘等强烈反应,临床上称之为“过敏反应”。肺部的纤维化是 SARS 带来的一个免疫病理性变化。造成这种现象的原因就是由于病毒的侵入,使得全部的免疫细胞都来进行抗击,本来是一个好现象,但过度的抗击却带来了不良的后 Immune function on the human body is like a double-edged sword, both play a protective role, but not all are beneficial. There are many examples of this: When the immune system greatly harms some innocuous substances, such as plant pollen, milk protein, fish and shrimp, it causes a strong reaction such as urticaria and asthma, which is clinically called “anaphylaxis ”. Pulmonary fibrosis is an immunopathological change caused by SARS. The reason for this phenomenon is due to the invasion of the virus, making all the immune cells have to fight against, it would have been a good sign, but excessive fighting has brought a bad after