Antimicrobial resistance and virulence genes in Escherichia coli and enterococci from red foxes (Vulpes vulpes)

  1. Radhouani, H. 23
  2. Igrejas, G. 3
  3. Gonçalves, A. 23
  4. Pacheco, R. 23
  5. Monteiro, R. 23
  6. Sargo, R. 3
  7. Brito, F. 23
  8. Torres, C. 1
  9. Poeta, P. 23
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Center of Studies of Animal and Veterinary Sciences, Vila Real, Portugal
  3. 3 Universidade de Trás-os-Montes e Alto Douro
    info

    Universidade de Trás-os-Montes e Alto Douro

    Vila Real, Portugal

    ROR https://ror.org/03qc8vh97

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Revista:
Anaerobe

ISSN: 1075-9964

Año de publicación: 2013

Volumen: 23

Páginas: 82-86

Tipo: Artículo

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DOI: 10.1016/J.ANAEROBE.2013.06.013 SCOPUS: 2-s2.0-84884588781 WoS: WOS:000325742400015 GOOGLE SCHOLAR

Otras publicaciones en: Anaerobe

Objetivos de desarrollo sostenible

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Resistencia bacteriana a antimicrobianos en ambiente y fauna salvaje. Mecanismos de resistencia y líneas genéticas emergentes e implicaciones en salud humana

2013/00001/001

Resumen

The aims of the study were to analyse the prevalence of antimicrobial resistance and the mechanisms implicated, as well as the virulence factors, in faecal Escherichia coli and Enterococcus spp. from red foxes. From 52 faecal samples, 22 E. coli (42.3%) and 50 enterococci (96.2%) isolates were recovered (one/sample). A high percentage of E. coli isolates exhibited resistance to streptomycin, tetracycline, trimethoprim-sulfamethoxazole or ampicillin (54-27%), and they harboured the aadA, tet(A) and/or tet(B), sul1 and blaTEM resistance genes, respectively. The E. coli isolates were ascribed to the 4 major phylogroups, D (41% of isolates), A (31.8%), B1 (18.2%) and B2 (9.1%), and carried the fimA (63.3%) or aer (13.6%) virulence genes. Among enterococcal isolates, Enterococcus faecium was the most prevalent species (50%). A high percentage of enterococcal isolates showed tetracycline resistance (88%) harbouring different combinations of tet(M) and tet(L) genes. The erm(B) or the aph(3′)-IIIa gene were identified in most of our erythromycin- or kanamycin-resistant enterococci, respectively. This report suggests the role of red foxes from rural areas in the cycle of transmission and spread of antimicrobial-resistant E. coli and enterococci into the environment, representing a reservoir of these antimicrobial-resistant microorganisms. © 2013 Elsevier Ltd. All rights reserved.