钩端螺旋体(简称钩体)脂多糖(LPS)的化学性质与生物学性状不同于大肠杆菌及其它革兰氏阴性杆菌的LPS,它既未发现有毒性,也无致热性,但免疫金地鼠后能抵抗同型强毒株的攻击。作者等应用问号钩体波摩那型和哈焦型LPS和LPS的多糖部分(PS) Leptospira (referred to as the hook body) lipopolysaccharide (LPS) is different from the chemical properties and biological properties of E. coli and other Gram-negative bacteria LPS, it was neither toxic nor pyrogenic, After the mouse can resist the same type of virulent attack. The authors applied the question mark hook body Pomona and the Haggard-type polysaccharide fractions (PS) of LPS and LPS