Extended-spectrum β-lactamase Enterobacteriaceae (ESBLE) in intensive care units: strong correlation with the ESBLE colonization pressure in patients but not same species
Résumé
Sink drains (SD) of six intensive care units (ICUs) were sampled for screening contamination with extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBLE). A high prevalence (59.4%) of SD contamination was observed. Analyzing the data by ICU, the ratio "number of ESBLE species isolated in SD/total number of SD sampled" was strongly correlated (Spearman coefficient, 0.87; P = .02) with the ratio "number of hospitalization days for patients with ESBLE carriage identified within the preceding year/total number of hospitalization days within the preceding year". Concurrently, the distribution of ESBLE species was strongly different between patients and SD.
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