Fatores de risco para excreção fecal e perfil de sensibilidade de Escherichia coli isoladas de cães hospitalizados na região de Dourados-MS

Abstract

We investigated the risk factors to the excretion of Escherichia coli in a population of 149 dogs with and without clinical gastroenteritis profile attended and kept under internment in the Hospital Veterinário do Centro Universitário da Grande Dourados - Unigran Dourados, MS, from July of 2010 to July of 2011. The investigation was carried out through the analysis of the medical records, of the fecal culture and the results of the antibiograms. From the 149 evaluated cases, 28% (42 isolated lineages) showed positive isolation for E. coli. From the 42 isolated lineages, 20 were from dogs with diarrhea and 22 from non diarrheal dogs. Among the risk factors associated to the fecal excretion of E. coli just the feeding was significant (p<0.05), throughout the observation of dogs which consumed human food showed 2.27 times more chances to excrete the agent. From the analysis of the antibiograms we elaborated a resistance phenotype with predominance of resistant lineages to amoxicillin, ampicillin, azithromycin, sulfonamides and tetracyclines. The phenotypes data for sensibility and resistance to enrofloxacin and ciprofloxacin were concordant in 41 (97.6%) from the 42 isolated. Similar data were observed to ampicillin and amoxicillin, that showed concordant results to 40 (95.2%) from 42 isolated. We concluded that hospitalized dogs can excrete E. coli multiresistant to the environment.