<unk>  is a genus of anaerobic, Gram-positive, non-spore forming bacteria. The cells are small, spherical, and can occur in short chains, in pairs or individually.<unk>  are slow-growing bacteria with increasing resistance to antimicrobial drugs.
Peptostreptococcus
Rhodococcus
Peptococcus
Actinomyces
Mycoplasma
Streptococcus pyogenes
Neisseria
Candida 