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Frequency of transferable multiple antibiotic resistance amongst coliform bacteria isolated from a treated sewage effluent in Antofagasta, Chile Electron. J. Biotechnol.
Silva,Juan; Castillo,Gabriela; Callejas,Lorena; López,Héctor; Olmos,Janet.
Antibiotic-resistant coliform bacteria from raw and treated water from activated sludge of a sewage treatment plant were isolated on eosin methylene blue agar (EMB) plates in the separate presence of ampicillin, tetracycline, chloramphenicol and streptomycin. Antibiotic resistant coliforms obtained from inflow and effluent waters were studied to determine influences of treatment on the species composition, resistance patterns and transferable resistance in these bacteria. The bacterial counts obtained showed a high proportion of antibiotic resistant coliforms in the treated effluent. The resistant coliform species were eliminated at different rates by the treatment. Escherichia coli decreased, whereas the proportion of Klebsiella sp increased. The...
Tipo: Journal article Palavras-chave: Antibiotic resistance; Coliforms; Plasmid; Sewage treatment; Water pollution.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000500008
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