Antimicrobial Susceptibility of Escherichia coli Isolated from Fresh-Marketed Nile Tilapia (Oreochromis niloticus)
| Autor: | Regine Helena Silva dos Fernandes Vieira, Lana Oliveira Leite, Oscarina Viana de Sousa, Rafael dos Santos Rocha |
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| Rok vydání: | 2014 |
| Předmět: |
Imipenem
Cefotaxime biology Nalidixic acid Article Subject Tetracycline lcsh:QR1-502 Aztreonam biochemical phenomena metabolism and nutrition biology.organism_classification lcsh:Microbiology Microbiology lcsh:Infectious and parasitic diseases chemistry.chemical_compound Nile tilapia chemistry Amikacin Ampicillin medicine lcsh:RC109-216 medicine.drug Research Article |
| Zdroj: | Journal of Pathogens Journal of Pathogens, Vol 2014 (2014) |
| ISSN: | 2090-3057 |
| Popis: | The contamination of seafood by bacteria of fecal origin, especiallyEscherichia coli, is a widely documented sanitary problem. The objective of the present study was to isolateE. colistrains from the gills, muscle, and body surface of farmed Nile tilapias (Oreochromis niloticus) fresh-marketed in supermarkets in Fortaleza (Ceará, Brazil), to determine their susceptibility to antibiotics of different families (amikacin, gentamicin, imipenem, cephalothin, cefotaxime, ciprofloxacin, aztreonam, ampicillin, nalidixic acid, tetracycline, and sulfametoxazol-trimetoprim), and to determine the nature of resistance by plasmid curing. Forty-four strains (body surface = 25, gills = 15, muscle = 4) were isolated, all of which were susceptible to amikacin, aztreonam, cefotaxime, ciprofloxacin, gentamicin, and imipenem. Gill and body surface samples yielded 11 isolates resistant to ampicillin, tetracycline, and sulfametoxazol-trimetoprim, 4 of which of plasmidial nature. The multiple antibiotic resistance index was higher for strains isolated from body surface than from gills. The overall high antibiotic susceptibility ofE. colistrains isolated from fresh-marketed tilapia was satisfactory, although the occasional finding of plasmidial resistance points to the need for close microbiological surveillance of the farming, handling, and marketing conditions of aquaculture products. |
| Databáze: | OpenAIRE |
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