Characteristics of CTX-M Extended-Spectrum β-Lactamase-Producing Escherichia coli Strains Isolated from Multiple Rivers in Southern Taiwan

Applied and Environmental Microbiology
Po-An ChenMing-Fang Cheng

Abstract

Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli sequence type ST131 has emerged as the leading cause of community-acquired urinary tract infections and bacteremia worldwide. Whether environmental water is a potential reservoir of these strains remains unclear. River water samples were collected from 40 stations in southern Taiwan from February to August 2014. PCR assay and multilocus sequence typing (MLST) analysis were conducted to determine the CTX-M group and sequence type, respectively. In addition, we identified the seasonal frequency of ESBL-producing E. coli strains and their geographical relationship with runoffs from livestock and poultry farms between February and August 2014. ESBL-producing E. coli accounted for 30% of the 621 E. coli strains isolated from river water in southern Taiwan. ESBL-producing E. coli ST131 was not detected among the isolates. The most commonly detected strain was E. coli CTX-M group 9. Among the 92 isolates selected for MLST analysis, the most common ESBL-producing clonal complexes were ST10 and ST58. The proportion of ESBL-producing E. coli was significantly higher in areas with a lower river pollution index (P = 0.025) and regions with a large number of chickens being rais...Continue Reading

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Citations

Apr 4, 2019·Microbial Drug Resistance : MDR : Mechanisms, Epidemiology, and Disease·Huiyun ZouLennart E Nilsson
May 25, 2021·Frontiers in Public Health·Silvia Adriana Mayer LentzAndreza Francisco Martins
Jul 10, 2021·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·Madesh AngappanPrasad Thomas
Jul 31, 2021·FEMS Microbiology Ecology·Jennifer MoussaSima Tokajian

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