[en] Enteropathogenic Escherichia coli (EPEC) are isolated from man and farm animals but also from dogs and cats. They produce typical histological lesions called 'attaching and effacing' lesions. Both plasmid and chromosomal elements are involved in the pathogenesis of EPEC infection. The presence of these genetic elements was investigated in 14 dog and three cat EPEC isolates. A bfpA-related gene was detected in five of the 17 isolates in association with high molecular weight plasmids, and a locus of enterocyte effacement (LEE) was present in all isolates. The LEE was inserted in the selC region in only 12% of the isolates. The eae, tir, espA and espB genes were analyzed by multiplex PCR. The results indicated the presence of those genes in the tested isolates with heterogeneity in the gene subtypes present: eae gamma-tir alpha-espA alpha-espB alpha (65%), eae beta-tir beta-espA beta-espB beta (29%), eae alpha-tir alpha-espA alpha-espB alpha (6%). Moreover, the espD gene was also present in dog and cat EPEC. The DEPEC and CEPEC form a heterogeneous group and five of them are closely related to human EPEC.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Goffaux, F.
China, B.
Janssen, L.
Mainil, Jacques ; Université de Liège - ULiège > Département des maladies infectieuses et parasitaires > Bactériologie et pathologie des maladies bactériennes
Language :
English
Title :
Genotypic Characterization of Enteropathogenic Escherichia Coli (Epec) Isolated in Belgium from Dogs and Cats
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