不同个体对感染的易感性是不同的,已经有越来越多的证据表明,遗传的易感性在感染性疾病的发病中起重要作用。基因的多态性即等位基因的变异,通常以一定频率存在于人群中。脂多糖(LPS)激活细胞的胞外信号转导机制是:LPS进入血液循环,首先是与血液中脂多糖结合蛋白(LBP)结合,形成 Different individuals have different susceptibility to infection. There is more and more evidence that genetic predisposition plays an important role in the pathogenesis of infectious diseases. Polymorphism of the gene is allelic variation, usually in a certain frequency in the population. Extracellular signal transduction mechanisms of LPS-activated cells are: LPS into the blood circulation, first with the blood lipopolysaccharide binding protein (LBP) to form