Aetiologically Relevant Typing of E. Coli Isolates from Diseased Pigs in Switzerland during 2014 and 2015
نویسندگان
چکیده
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.
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