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Galvin, S,Boyle, F,Hickey, P,Vellinga, A,Morris, D,Cormican, M
2010
July
Applied And Environmental Microbiology
Enumeration and Characterization of Antimicrobial-Resistant Escherichia coli Bacteria in Effluent from Municipal, Hospital, and Secondary Treatment Facility Sources
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Optional Fields
SPECTRUM BETA-LACTAMASES WATER TREATMENT-PLANT ANTIBIOTIC-RESISTANCE WASTE-WATER CLINICAL-SIGNIFICANCE FECAL-COLIFORMS CITY SEWAGE ENTEROBACTERIACEAE SLUDGE ENVIRONMENTS
76
4772
4779
We describe a modification of the most probable number (MPN) method for rapid enumeration of antimicrobial-resistant Escherichia coli bacteria in aqueous environmental samples. E. coli (total and antimicrobial-resistant) bacteria were enumerated in effluent samples from a hospital (n = 17) and municipal sewers upstream (n = 5) and downstream (n = 5) from the hospital, effluent samples from throughout the treatment process (n = 4), and treated effluent samples (n = 13). Effluent downstream from the hospital contained a higher proportion of antimicrobial-resistant E. coli than that upstream from the hospital. Wastewater treatment reduced the numbers of E. coli bacteria (total and antimicrobial resistant); however, antimicrobial-resistant E. coli was not eliminated, and E. coli resistant to cefotaxime (including extended-spectrum betalactamase [ESBL] producers), ciprofloxacin, and cefoxitin was present in treated effluent samples.
DOI 10.1128/AEM.02898-09
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