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''Fusobacterium'' is a genus of anaerobic, Gram-negative bacteria, similar to ''Bacteroides''. Individual cells are rod-shaped bacilli with pointed ends. Strains of ''Fusobacterium'' cause several human diseases, including periodontal diseases, Lemierre's syndrome, and topical skin ulcers. Although older sources state that ''Fusobacterium'' is part of the normal flora of the human oropharynx, the current consensus is that ''Fusobacterium'' should always be treated as a pathogen. ''F. prausnitzii'', a gut commensal associated with healthy patients, was moved out of ''Fusobacterium'' into its own genus, ''Faecalibacterium'', in 2002. ==Clinical relevance== In 2011, researchers discovered that ''Fusobacterium'' flourishes in colon cancer cells, and is often also associated with ulcerative colitis, although researchers have not determined if the organism actually causes these diseases or if it simply flourishes in the environment these diseases create. The bacterium is a big anchor for biofilms. In contrast to ''Bacteroides'' spp., ''Fusobacterium'' has a potent lipopolysaccharide. Clindamycin was the most active antibiotic against '' Fusobacterium ''species, followed by chloramphenicol, carbenicillin, and cefoperazone (which were about equally active) and then cefamandole.〔Donald Kaye, William Kobasa, Karen Kaye. (1980). ("Susceptibilities of anaerobic bacteria to cefoperazone and other antibiotics". ) Antimicrobial Agents and Chemotherapy, June 1980, pp. 957-960.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fusobacterium」の詳細全文を読む スポンサード リンク
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