Peptostreptococcus spp are a Gram-positive, anaerobic, zoonotic commensal bacteria which is a commensal in the oropharynx, skin, gastrointestinal, vagina and urinary tracts, and compose a portion of the bacterial gut flora.
These bacteria have a predilection for anaerobic sites and a tendency to purulent disease and can cause zoonotic disease via bite wounds or licking, especially in immunocompromised humans.
Disease can spread systemically, usually via hematogenous routes.
Species which have been reported in dogs include:
- Peptostreptococcus productus
- Peptostreptococcus magnus
- Peptostreptococcus tetradius
- Finegoldia magna
Diagnosis is usually based on bacterial culture and speciation via PCR assays.
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