<unk>  is a genus of Gram-positive, catalase-positive, rod-shaped bacteria; some species are pathogenic <unk> sis).<unk>  are found worldwide in soil that is rich with organic matter.  Most<unk>  infections are acquired by inhalation of the bacteria or through traumatic introduction.
Nocardia
Levocardia
Pseudomonas
Streptococcus
Peptococcus
Rhodococcus
Corynebacterium
Bacillus anthracis