May be acquired from diverse environmental sources (i.e. tap water, soil, plants)
Can be a lung colonizer in CF patients
Usually acquired from nosocomial sources:
Patient's at risk:
Most common reason for isolation is colonization of the respiratory tract
Most common true infections - blood stream infection (usually from vascular catheter) and pneumonia
Other manifestations rare (endocarditis, sinusitis, cellulitis, etc)
