Occurrence of Extended-Spectrum and AmpC-Type β-Lactamase Genes in Escherichia coli Isolated from Water Environments in Northern Thailand

Sixty-eight cefotaxime-resistant Escherichia coli isolates were recovered from different water environments in Northern Thailand. Isolates were mostly resistant to ceftazidime and aztreonam (>90%). The most common extended-spectrum β-lactamase-encoding gene was bla(CTX-M-group 1) (75%) followed b...

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Detalles Bibliográficos
Autores principales: Assawatheptawee, Kanit, Tansawai, Uttapoln, Kiddee, Anong, Thongngen, Phetrada, Punyadi, Phiraphat, Romgaew, Tayawee, Kongthai, Phattaraporn, Sumpradit, Tawatchai, Niumsup, Pannika R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: the Japanese Society of Microbial Ecology (JSME)/the Japanese Society of Soil Microbiology (JSSM)/the Taiwan Society of Microbial Ecology (TSME)/the Japanese Society of Plant Microbe Interactions (JSPMI) 2017
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5606701/
https://www.ncbi.nlm.nih.gov/pubmed/28890469
http://dx.doi.org/10.1264/jsme2.ME17050
Descripción
Sumario:Sixty-eight cefotaxime-resistant Escherichia coli isolates were recovered from different water environments in Northern Thailand. Isolates were mostly resistant to ceftazidime and aztreonam (>90%). The most common extended-spectrum β-lactamase-encoding gene was bla(CTX-M-group 1) (75%) followed by bla(CTX-M-group 9) (13.2%). The co-existence of bla(CTX-M) and AmpC-type β-lactamase genes was detected in 4 isolates (5.9%). Two E. coli isolates carrying bla(CTX-M) from canal and river water samples belonged to the phylogenetic group B2-ST131, which is known to be pathogenic. This is the first study on bla(CTX-M) and bla(CMY-2)-carrying E. coli and the emergence of ST131 from water environments in Thailand.

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