Antibiotic resistant< i> Escherichia coli</i> in hospital and municipal sewage and their emission to the environment

作者: Ewa Korzeniewska , Anna Korzeniewska , Monika Harnisz

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摘要: The spreading of antibiotic resistant bacteria in the environment is a threat to human health but little is known about the transmission of extended-spectrum beta-lactamases (ESBL)-producing Escherichia coli from the hospital and municipal sewage to the water basin and to the air at the WWTPs (Waste Water Treatment Plants) area and their surroundings. Accordingly, it seems particularly interesting to trace the fate of these bacteria and their genes encoding antibiotic resistance in both untreated sewage from hospitals, and in sewage after different stages of purification, and finally to examine the degree of their emissions to environment. Although wastewater treatment processes reduce number of bacteria in sewage up to 99%, in the presented study it was reported that more than 2.7×103 CFU/mL E. coli reached the receiving water and contributed to dissemination of resistant bacteria into the environment. We …

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