<unk>  is a motile and highly proteolytic bacterium. The Gram-negative oral spirochete  is associated with the incidence and severity of human periodontal disease.<unk>   levels in the mouth are elevated in patients with periodontal diseases and the species  is considered one of the main etiological agents of periodontitis.  <unk>  dwells in a complex and diverse microbial community in the oral cavity and  is highly specialized to survive in this environment.<unk>  is related to the syphilis-causing obligate human pathogen,<unk>  pallidum subsp. pallidum.
Treponema denticola
Haemophilus ducreyi
Mansonella perstans
Klebsiella rhinoscleromatis
Cryptosporidium hominis
Mycobacterium xenopi
Mansonella ozzardi
Streptobacillus moniliformis