<unk>  is a genus of filamentous, anaerobic, Gram-negative bacteria, similar to Bacteroides.<unk>  contribute to several human diseases, including periodontal diseases, Lemierre's syndrome, and tropical skin ulcers. Although older resources have stated that<unk>  is a common occurrence in the human oropharynx, the current consensus is that<unk>  should always be treated as a pathogen.
Fusobacterium
Bacteroides
Arcobacter
Clostridium
Bacillus subtilis
Lactobacillus
Pseudomonas
Bacillus cereus