prevalence of colonization with antibiotic resistant gram-negative bacilli in a nursing home care unit: the importance of cross-colonization as documented by plasmid analysis. | a prevalence study was carried out on a 100-bed veterans administration nursing home care unit to determine the extent of colonization with gentamicin-resistant gram-negative bacilli (grgnb). hand cultures of 12 employees and 17 environmental cultures were negative. twenty-six of 86 (30%) patients were colonized with 49 grgnb. sixteen patients (19%) had urinary colonization. multivariate analysis revealed significant associations between rectal or perineal colonization (p less than 0.01), and th ... | 1986 | 3536783 |