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口腔菌种达200多种,以厌氧菌为主,与需氧菌之比为10∶1;常见厌氧菌有黑素类杆菌属、费氏杆菌属、消化球菌属、拟杆菌属、消化链球菌属等。厌氧菌的口腔感染常可伴发鼻窦炎、脑脓肿、心内膜炎、纵隔障炎,也是扁桃体炎、扁桃体周围脓肿及咽炎的常见致病菌。如有人从扁桃体周围脓肿病人可分离到厌氧菌阳性率达43%,多为拟杆菌属、消化球菌属、梭形杆菌属的兼性需氧链球菌属、消化链球菌属、乳酸杆菌属和费氏杆菌属。有人从760例慢性化脓性中耳炎病人分离到9种厌氧菌81株,占8.2%,主要为消化链球菌属(占40%)和拟杆菌属(占20%)。作者从慢性化脓性中耳炎病人分
Oral bacteria of more than 200 species, mainly anaerobic bacteria, and aerobic bacteria ratio of 10: 1 common anaerobic bacteria are Melanophilus genus, genus Fei bacteria, peptococcus, Bacteroides, Peptostreptococcus, etc. Anaerobic oral infections often accompanied by sinusitis, brain abscess, endocarditis, mediastinal inflammation, but also tonsillitis, tonsillitis and pharyngitis around the common pathogens. If anyone from the amygdala abscess patients isolated anaerobic positive rate of 43%, mostly Bacteroides, Peptococcus, genus of the genus Fusobacterium genus Aeromonas, Peptostreptococcus, Lactobacillus And Fusobacterium. Eighty-one anaerobic strains were isolated from 760 patients with chronic suppurative otitis media, accounting for 8.2% of the total, mainly Peptostreptococcus (40%) and Bacteroides (20%). The author points from patients with chronic suppurative otitis media