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Home / Archives for Leonard N

Characterization of antimicrobial resistance of Salmonella enterica food and animal isolates from Colombia: identification of a qnrB19-mediated quinolone resistance marker in two novel serovars

  • Autores: Aarestrup FM, Amaral L, Fanning S, Karczmarczyk M, Leonard N, Martins M, Mattar S, McCusker M
  • Journal: FEMS Microbiology Letters
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/?term=Characterization+of+antimicrobial+resistance+of+Salmonella+enterica+food+and+animal+isolates+from+Colombia%3A+identification+of+a+qnrB19-mediated+quinolone+resistance+marker+in+two+novel+serovars

Ninety-three Salmonella isolates recovered from commercial foods and exotic animals in Colombia were studied. The serotypes, resistance profiles and where applicable the quinolone resistance genes were determined. Salmonella Anatum (n=14), Uganda (19), Braenderup (10) and Newport (10) were the most prevalent serovars, and resistance to tetracycline (18.3%), ampicillin (17.2%) and nalidixic acid (14%) was most […]
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Mechanisms of fluoroquinolone resistance in Escherichia coli isolates from food-producing animals.

  • Autores: Fanning S, Karczmarczyk M, Leonard N, Martins M, Quinn T
  • Journal: Applied and Environmental Microbiology
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/21856834

Eleven multidrug-resistant Escherichia coli isolates (comprising 6 porcine and 5 bovine field isolates) displaying fluoroquinolone (FQ) resistance were selected from a collection obtained from the University Veterinary Hospital (Dublin, Ireland). MICs of nalidixic acid and ciprofloxacin were determined by Etest.
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About GHTM

GHTM is a R&D Center that brings together researchers from IHMT with a track record in Tropical Medicine and International/Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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