Taxonomy
Family: Propionibacteriacea
Genus: Cutibacterium acnes
Formely: Propioni acnes

P. acnes group:
- P. acnes
- P. avidum
- P. granulosum
- P. lympophilum

Natural habitats
Probionibacterium species are predominant indigenous flora of the skin, but also can be recovered from the gastrointestinale tract, upper respiratory tract and the urogenitale tract.

Because of their prescence on skin, Propionibacterium are often contanminants of specimens such as blood or other body fluids obtained through skin puncture.

Clinical significance
Found as secundary agents of infected sinuses, wounds, and abscesses.