The occurrence of expanded-spectrum-beta-lactamase-producing strains was prospectively studied in 56 patients in an intensive care unit. Ten patients were infected or colonized; some of these patients had asymptomatic intestinal colonization. Four different expanded-spectrum beta-lactamases were identified and used as epidemiological markers to survey nosocomial infections.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC267156 | PMC |
| http://dx.doi.org/10.1128/jcm.27.12.2887-2890.1989 | DOI Listing |
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