the following information is not yet verified
Taxonomy
Family: Fusobacteriaceae

Natural habitats
Normal commensals of the human oropharynx, gastrointestinale tract, and female genital tract.

Clinical significance
The genus Fusobacterium includes 9 disease-causing species that are part of the normal flora of the human oropharynx and the upper respiratory, gastrointestinal, and female genitourinary tracts: F. nucleatum (subspecies nucleatum, polymorphum, vincentii, animalis, fusiforme, and canifelium), F. necrophorum (subspecies necrophorum and funduliforme), F. ulcerans, F. gonidiaformans, F. mortiferum, F. naviforme, F. necrogenes, F. russii, and F. varium.