Article: Escherichia coli producing CTX-M β-lactamases in food animals in Hong Kong

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TitleEscherichia coli producing CTX-M β-lactamases in food animals in Hong Kong
AuthorsDuan, RS1
Sit, THC2
Wong, SSY1
Wong, RCW1
Chow, KH1
Mak, GC1
Ng, LT2
Yam, WC1
Yuen, KY1
Ho, PL1
Issue Date2006
PublisherMary Ann Liebert, Inc Publishers. The Journal's web site is located at http://www.liebertpub.com/mdr
CitationMicrobial Drug Resistance, 2006, v. 12 n. 2, p. 145-148 [How to Cite?]
DOI: http://dx.doi.org/10.1089/mdr.2006.12.145
AbstractA study was conducted to evaluate the occurrence of extended-spectrum β-lactamases (ESBLs)-producing Escherichia coli from fecal samples of healthy food animals in Hong Kong. Rectal or cloacal swabs were obtained from cattle, pigs, chicken, ducks, geese, and pigeons in slaughterhouses or wholesale markets over a 5-month period in 2002. Antibiotic-containing medium was used for selective isolation of potentially ESBL-producing E. coli. Of 734 samples analyzed, six (2%) from pigs, three (3.1%) from cattle, and one (3%) from pigeons had E. coli strains with the ESBL phenotype. The ESBL content for the 10 isolates include CTX-M-3 (n = 4), CTX-M-13 (n = 3), CTX-M-14 (n = 2), and CTX-M-24 (n = 1). In five isolates, the blaCTX-M gene was encoded on transferable plasmids (60 or 90 kb), and the gene was found to transfer to E. coli (J53 or JP995) with frequencies of 10-7 to 10-3 per donor cells. The ten isolates had five distinct pulsotypes with some clonal spread. However, the isolates from the different kinds of animals were not clonaly related. These findings imply that bacteria of animal origins may serve as reservoirs of some ESBL genes. © Mary Ann Liebert, Inc.
ISSN1076-6294
2011 Impact Factor: 2.153
2011 SCImago Journal Rankings: 0.226
DOIhttp://dx.doi.org/10.1089/mdr.2006.12.145
ISI Accession Number IDWOS:000239288500012
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorDuan, RS
dc.contributor.authorSit, THC
dc.contributor.authorWong, SSY
dc.contributor.authorWong, RCW
dc.contributor.authorChow, KH
dc.contributor.authorMak, GC
dc.contributor.authorNg, LT
dc.contributor.authorYam, WC
dc.contributor.authorYuen, KY
dc.contributor.authorHo, PL
dc.date.accessioned2012-08-08T08:50:04Z
dc.date.available2012-08-08T08:50:04Z
dc.date.issued2006
dc.description.abstractA study was conducted to evaluate the occurrence of extended-spectrum β-lactamases (ESBLs)-producing Escherichia coli from fecal samples of healthy food animals in Hong Kong. Rectal or cloacal swabs were obtained from cattle, pigs, chicken, ducks, geese, and pigeons in slaughterhouses or wholesale markets over a 5-month period in 2002. Antibiotic-containing medium was used for selective isolation of potentially ESBL-producing E. coli. Of 734 samples analyzed, six (2%) from pigs, three (3.1%) from cattle, and one (3%) from pigeons had E. coli strains with the ESBL phenotype. The ESBL content for the 10 isolates include CTX-M-3 (n = 4), CTX-M-13 (n = 3), CTX-M-14 (n = 2), and CTX-M-24 (n = 1). In five isolates, the blaCTX-M gene was encoded on transferable plasmids (60 or 90 kb), and the gene was found to transfer to E. coli (J53 or JP995) with frequencies of 10-7 to 10-3 per donor cells. The ten isolates had five distinct pulsotypes with some clonal spread. However, the isolates from the different kinds of animals were not clonaly related. These findings imply that bacteria of animal origins may serve as reservoirs of some ESBL genes. © Mary Ann Liebert, Inc.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationMicrobial Drug Resistance, 2006, v. 12 n. 2, p. 145-148 [How to Cite?]
DOI: http://dx.doi.org/10.1089/mdr.2006.12.145
dc.identifier.doihttp://dx.doi.org/10.1089/mdr.2006.12.145
dc.identifier.epage148
dc.identifier.hkuros118603
dc.identifier.isiWOS:000239288500012
dc.identifier.issn1076-6294
2011 Impact Factor: 2.153
2011 SCImago Journal Rankings: 0.226
dc.identifier.issue2
dc.identifier.pmid16922633
dc.identifier.scopuseid_2-s2.0-33746712211
dc.identifier.spage145
dc.identifier.urihttp://hdl.handle.net/10722/157450
dc.identifier.volume12
dc.languageeng
dc.publisherMary Ann Liebert, Inc Publishers. The Journal's web site is located at http://www.liebertpub.com/mdr
dc.publisher.placeUnited States
dc.relation.ispartofMicrobial Drug Resistance
dc.relation.referencesReferences in Scopus
dc.subject.meshAnimals
dc.subject.meshAnimals, Domestic - Microbiology
dc.subject.meshAnti-Bacterial Agents - Pharmacology
dc.subject.meshCattle
dc.subject.meshDrug Resistance, Multiple, Bacterial - Genetics
dc.subject.meshEscherichia Coli - Drug Effects - Genetics - Metabolism
dc.subject.meshFood Microbiology
dc.subject.meshGenes, Bacterial
dc.subject.meshHong Kong - Epidemiology
dc.subject.meshPoultry
dc.subject.meshSwine
dc.subject.meshBeta-Lactamases - Biosynthesis - Genetics
dc.titleEscherichia coli producing CTX-M β-lactamases in food animals in Hong Kong
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Hong Kong Government