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Aetiologically relevant typing of E. Coli isolates from diseased pigs in Switzerland during 2014 and 2015


Schneeberger, Marianne; Dietz, Olivier; Kirchgässner, Constanze; Schmitt, Sarah (2017). Aetiologically relevant typing of E. Coli isolates from diseased pigs in Switzerland during 2014 and 2015. ARC Journal of Animal and Veterinary Sciences, 3(1):Epub ahead of print.

Abstract

In this study, 210 intestinal Escherichia (E.) coli isolates from enteropathogenic diseased pigs were screened for their virulence factors (F4, F5, F6, F18, STa, STb, LT, STx2e and intimin) by PCR and serogrouped by slide-agglutination (O8:K87, O45, O138:K81, O139:K82, O141:K85, O147:K89, O157 and O149:K91). In total, 24.8% enterotoxigenic E. coli, 7.1% enteropathogenic E. coli and 5.2% oedema disease E. coli could be isolated. For enterotoxigenic E. coli, the most frequent virulence pattern was F4/STb/LT with the O-serogroup O149:K91 or O8:K87, followed by F18/STa/STb with the O-serogroup O141:K85. F18/STx2e was the common virulence pattern in oedema disease E. coli isolates and they were associated with the O-serogroups O139:K82 and O141:K85. Keywords: Escherichia coli, ETEC, EDEC, EPEC, pig, Switzerland.

Abstract

In this study, 210 intestinal Escherichia (E.) coli isolates from enteropathogenic diseased pigs were screened for their virulence factors (F4, F5, F6, F18, STa, STb, LT, STx2e and intimin) by PCR and serogrouped by slide-agglutination (O8:K87, O45, O138:K81, O139:K82, O141:K85, O147:K89, O157 and O149:K91). In total, 24.8% enterotoxigenic E. coli, 7.1% enteropathogenic E. coli and 5.2% oedema disease E. coli could be isolated. For enterotoxigenic E. coli, the most frequent virulence pattern was F4/STb/LT with the O-serogroup O149:K91 or O8:K87, followed by F18/STa/STb with the O-serogroup O141:K85. F18/STx2e was the common virulence pattern in oedema disease E. coli isolates and they were associated with the O-serogroups O139:K82 and O141:K85. Keywords: Escherichia coli, ETEC, EDEC, EPEC, pig, Switzerland.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Veterinary Bacteriology
Dewey Decimal Classification:570 Life sciences; biology
Language:English
Date:January 2017
Deposited On:10 Feb 2017 13:11
Last Modified:09 Apr 2017 01:02
Publisher:ARC Publications Pvt. Ltd.
ISSN:2455-2518
Publisher DOI:https://doi.org/10.20431/2455-2518.0301001

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