First isolation of atypical enteropathogenic Escherichia coli from geese (Anser anser domestica) and first description of atypical EPEC from turkeys and pigeons in Hungary

BMC Veterinary Research

László Könyves¹  András Adorján²  István Tóth³  Ákos Thuma⁴ 

[1] Department of Animal Hygiene and Mobile Clinic, University of Veterinary Medicine;Department of Microbiology and Infectious Diseases, University of Veterinary Medicine;Institute for Veterinary Medical Research, Centre for Agricultural Research;Veterinary Diagnostic Directorate, National Food Chain Safety Office;

关键词: Atypical enteropathogenic Escherichia coli;    aEPEC;    Water fowl;    Geese;    Multidrug resistance;   

DOI  :  10.1186/s12917-021-02968-w

来源: DOAJ

【 摘 要 】

Abstract Background Escherichia coli is a bacterial species widely distributed among mammals and avian species, and also a member of the normal intestinal microbiota. However, some E. coli strains of different pathotypes can cause disease in both humans and animals. Atypical enteropathogenic E. coli (aEPEC) can infect both animals and humans or influence the severity of other ongoing infections. Results In the present study, a total of 332 samples were collected from ducks, geese, turkeys, chickens, and pigeons from the Hungarian Veterinary Diagnostic Directorate, two slaughterhouses, two pigeon keepers and one backyard chicken farm. E. coli was isolated and verified from 319 samples. The isolates were screened by PCR for diarrheagenic E. coli pathotypes. Altogether seven atypical enteropathogenic E. coli (aEPEC) strains were identified: two from four-week-old dead turkeys, two from force-fed geese, and three from pigeons. No further pathotypes were identified in the collection. The atypical EPEC strains were classified phylogenetically to B1, B2, and F, and four out of the seven aEPEC isolates proved to be multidrug resistant. Serotypes of aEPEC strains were uniform collected from same farms and showed diversity between their origins with O76, O145, O109 serogroups. Conclusions This is the first report in the literature about aEPEC in goose (Anser anser domestica). Furthermore, this is the first isolation of aEPEC from turkeys and pigeons in Hungary. The uneven distribution of aEPEC in different age groups of poultry suggests that aEPEC disappears with growing up, but stress (e.g.: force-feeding) and concurrent diseases might promote its reappearance in the intestine.

【 授权许可】

Unknown