材料和方法 用口腔常驻厌氧菌的多糖抗原和蛋白质抗原,用免疫酶分析法,测定血清抗体水平,抗原浓度1:100,血清稀释1:1000。先检查颌面部牙源性厌氧菌感染患者34例,对照组是28例健康人(4～16岁17例,19～39岁11例),根据患者相应抗体水平升高的程度,确定诊断厌氧菌感染的抗体水平阳性结果 Materials and Methods The polysaccharide antigen and protein antigen of oral anaerobic bacteria were used. The level of serum antibody was determined by immunoenzyme analysis. The antigen concentration was 1: 100, and the serum dilution was 1: 1000. 34 cases of maxillofacial anaerobic infections were examined. The control group consisted of 28 healthy subjects (17 cases aged 4-16 years and 11 cases aged 19-39 years). According to the level of the corresponding antibody in the patients, Antibody level positive results for diagnosis of anaerobic infections