60年代以来,厌氧菌感染(Anaerobic infection)的报道渐见增多,目前已证实厌氧菌是临床感染的常见致病原。病因:厌氧菌按其对氧的耐受程度,可分为三类:①专性厌氧菌:可能因缺乏细脆色素、细胞色素氧化酶、触酶、过氧化物酶和岐化酶,其氧化过程不需要氧,氧的存在可使其迅速死亡;②微需 Since the 1960s, reports of Anaerobic infections have been gradually increasing, and anaerobic bacteria have been confirmed as common causative pathogens in clinical infections. Etiology: anaerobic bacteria according to their degree of tolerance to oxygen can be divided into three categories: ① obligate anaerobic bacteria: may be due to the lack of fine brittle pigment, cytochrome oxidase, catalase, peroxidase and dismutase , The oxidation process does not require oxygen, the presence of oxygen can make it die quickly;