Acinetobacter baumannii is a pathogen of concern as it has become increasingly resistant to antibiotics, and infection has been associated with increased mortality, particularly in elderly patients and those with indwelling devices. We will evaluate the risk factors for A. baumannii colonization in nursing home residents with indwelling devices, such as urinary catheters and feeding tubes, and characterize the nature of co-colonization with other antibiotic resistant organisms.