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Antibiotic resistance of Escherichia coli in leachates from municipal solid waste landfills: comparison between semi-aerobic and anaerobic operations.

Abstract：

:A bacterial susceptibility test to 31 antibiotics was conducted on the 80 isolated Escherichia coli from the leachates of the landfills in two different operations: semi-aerobic (SL) and anaerobic (AL) landfills. The average population of E. coli from SL and AL leachates were 2.2 × 10(4) and 9.4 × 10(3)CFU/100ml, respectively. Between 80.8% and 87.5% of the E. coli isolated from both leachates as resistant to the tested antibiotics and high resistances were found to doxycycline (53.8-68.8%), cephalothin (57.5-61.3%), tetracycline (51.3-67.5%) and minocycline (37.5-46.3%). The percentages of isolates resistant to most antibiotics were higher in the AL leachate. The exception was nitrofurantoin to which the isolates from the SL were highly resistant. E. coli from both sources showed similarly high susceptibilities (90-100%) to aminoglycosides, quinolones, chloramphenicol, sulfonamide and some new beta-lactams. The difference in available oxygen in landfills could affect E. coli susceptibility to antibiotics in leachates.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Threedeach S,Chiemchaisri W,Watanabe T,Chiemchaisri C,Honda R,Yamamoto K

doi

10.1016/j.biortech.2012.01.086

subject

Has Abstract

pub_date

2012-06-01 00:00:00

pages

253-8

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(12)00110-1

journal_volume

113

pub_type

杂志文章

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