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厌氧菌是一类需在氧张力极低条件下才能生存繁殖的细菌。此类细菌大量寄生于人的口腔粘膜、消化道、泌尿道、女性生殖道及皮肤等,厌氧菌感染往往是内源性的感染且多为混合感染。 脆弱拟杆菌是主要的厌氧致病菌,其次是梭状芽胞杆菌,产气荚膜杆菌、丙酸杆菌属,直杆菌属,消化链球菌属和消化球菌属,微需氧球菌和链球菌等。近年来,由于厌氧菌分离与鉴定技术的进步,厌氧菌感染在临床上的重要性日益为人们所重视。有报道表明,细菌感染性疾病中2/3有厌氧菌存在,
Anaerobes are a group of bacteria that need to survive and reproduce under conditions of very low oxygen tension. Such a large number of parasitic bacteria in human oral mucosa, digestive tract, urinary tract, female genital tract and skin, anaerobic infections are often endogenous infections and mostly mixed infections. Bacteroides fragilis is the major pathogen of anaerobic bacteria, followed by Clostridium perfringens, Clostridium perfringens, Propionibacterium, Strains of the genus Strains, Peptostreptococcus and Peptococcus, micro-aerobes and Streptococcus Wait. In recent years, due to the progress of separation and identification of anaerobic bacteria, the clinical importance of anaerobic infections is increasingly valued. It has been reported that 2/3 of the bacterial infectious diseases have anaerobic bacteria,