目前,临床微生物学越来越重视非芽胞专性厌氧菌(类杆菌、梭形杆菌、革蓝氏阳性和阴性球菌)致病性的研究.已经查明,它们是大多数化脓和化脓-脓毒性疾病的病原体.其中,主要位于肠道的类杆菌,尤其是脆弱类杆菌和产黑色素类杆菌具有明显的致病性.脆弱类杆菌等临床菌株对青霉素、第一代头孢菌素、氨基糖苷类和大环内酯类抗 Currently, clinical microbiology is placing increasing emphasis on the study of the pathogenicity of non-spore-forming anaerobes (Bacteroides, Fusobacterium, Gram-positive and Negative cocci) and has been identified as the majority of suppurative and suppurative- Septic disease pathogens which mainly located in the intestinal Bacteroides, especially Bacteroides fragilis and melanin-producing bacilli has obvious pathogenic Bacteroides fragilis and other clinical strains of penicillin, first-generation cephalosporins, amino Glycosides and macrolides resistant