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Prevalence and genomic characteristics of zoonotic gastro-intestinal pathogens and ESBL/pAmpC producing Enterobacteriaceae among Swedish corvid birds
Department of Microbiology, National Veterinary Institute, Uppsala, Sweden.
Department of Microbiology, National Veterinary Institute, Uppsala, Sweden.
Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology, Infection and Inflammation. Linköping University, Faculty of Medicine and Health Sciences. Department of Microbiology, National Veterinary Institute, Uppsala, Sweden.
Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden.
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2019 (English)In: Infection Ecology & Epidemiology, ISSN 2000-8686, E-ISSN 2000-8686, Vol. 9, no 1, article id 1701399Article in journal (Refereed) Published
Abstract [en]

Introduction: Wild birds pose a potential threat to animal and human health by spreading infectious diseases. In the present study, we studied the occurrence of bacterial zoonotic pathogens as well as enterobacteria with transferrable antimicrobial resistance genes among Swedish corvids.

Materials and methods: Intestines from 66 jackdaws, crows, rooks and magpies from the vicinity of livestock farms at 14 locations in 7 counties were analysed by direct culture or PCR screening followed by culture. Isolates were investigated by whole-genome sequencing.

Results and discussionCampylobacter jejuni were detected in 82% and Yersinia in 3% of the birds. ESBL-producing E. coli were found in one sample (2%) and carried blaCTX-M-55. No Enterobacteriaceae with transferable carbapenem resistance were identified. No Salmonella or E. coli O157:H7 were found, but PCR analysis for enterohaemorrhagic E. coli virulence genes revealed 35% positive samples for intimin, 9% for verotoxin 1 and 17% for verotoxin 2. C. jejuni isolates from corvids were compared to previously published isolates from Swedish sources by multi-locus sequence typing based on genome sequences. All corvid C. jejuni isolates formed a cluster, intermingled with human and chicken isolates. Our results indicate that C. jejuni is ubiquitous among Swedish corvid birds, with sporadic transmission to poultry and humans.

Place, publisher, year, edition, pages
Taylor & Francis, 2019. Vol. 9, no 1, article id 1701399
Keywords [en]
One health; campylobacter; genomics; jackdaw; wildlife; zoonotic disease
National Category
Microbiology in the medical area
Identifiers
URN: urn:nbn:se:liu:diva-164710DOI: 10.1080/20008686.2019.1701399PubMedID: 32002147Scopus ID: 2-s2.0-85076586930OAI: oai:DiVA.org:liu-164710DiVA, id: diva2:1420564
Available from: 2020-03-31 Created: 2020-03-31 Last updated: 2020-04-23Bibliographically approved

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Börjesson, Stefan

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