First countrywide survey of third-generation cephalosporin-resistant Escherichia coli from broilers, swine, and cattle in Switzerland

Endimiani, Andrea; Rossano, Alexandra; Kunz, Daniel; Overesch, Gudrun; Perreten, Vincent (2012). First countrywide survey of third-generation cephalosporin-resistant Escherichia coli from broilers, swine, and cattle in Switzerland. Diagnostic microbiology and infectious disease, 73(1), pp. 31-8. New York, N.Y.: Elsevier 10.1016/j.diagmicrobio.2012.01.004

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The herd prevalence of third-generation cephalosporin-resistant Escherichia coli (3GC-R-Ec) was determined for broilers (25.0% [95% confidence interval (CI) 17.6-33.7%]), pigs (3.3% [(95% CI 0.4-11.5%]), and cattle (3.9% [95% CI 0.5-13.5%]), using a sampling strategy that was representative of the livestock population slaughtered in Switzerland between October 2010 and April 2011. The 3GC-R-Ec isolates were characterized by the measurement of the MICs of various antibiotics, microarray analyses, analytical isoelectric focusing, polymerase chain reaction and DNA sequencing for bla genes, pulsed-field gel electrophoresis (PFGE), and multilocus sequence typing. CMY-2 (n = 12), CTX-M-1 (n = 11), SHV-12 (n = 5), TEM-52 (n = 3), CTX-M-15 (n = 2), and CTX-M-3 (n = 1) producers were found. The majority of CMY-2 producers fell into 1 PFGE cluster, which predominantly contained ST61, whereas the CTX-M types were carried by heterogeneous clones of E. coli, as shown by the numerous PFGE profiles and STs that were found. This is the first national Swiss study that focuses on the spread of 3GC-R Enterobacteriaceae among slaughtered animals.

Item Type:	Journal Article (Original Article)
Division/Institute:	05 Veterinary Medicine > Research Foci > Veterinary Public Health / Herd Health Management 05 Veterinary Medicine > Research Foci > Host-Pathogen Interaction 04 Faculty of Medicine > Service Sector > Institute for Infectious Diseases 05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) 05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Veterinary Bacteriology
UniBE Contributor:	Endimiani, Andrea, Rossano, Alexandra, Kunz, Daniel Olivier, Overesch, Gudrun, Perreten, Vincent
Subjects:	600 Technology > 630 Agriculture
ISSN:	0732-8893
Publisher:	Elsevier
Language:	English
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 14:39
Last Modified:	05 Dec 2022 14:12
Publisher DOI:	10.1016/j.diagmicrobio.2012.01.004
PubMed ID:	22578936
Web of Science ID:	000304506500006
URI:	https://boris.unibe.ch/id/eprint/16022 (FactScience: 223571)