Prevalence and Antimicrobial Resistance of Cronobacter sakazakii Isolated from Domestic Kitchens in Middle Tennessee, United States
2012
Kilonzo-Nthenge, A. | Rotich, E. | Godwin, S. | Nahashon, S. | Chen, F.
Cronobacter sakazakii is an emerging opportunistic pathogen that has been implicated in cases of severe meningitis, sepsis, and necrotizing enterocolitis in premature and full-term infants. In this study, the prevalence of C. sakazakii was estimated in selected domestic kitchens in middle Tennessee. Antimicrobial resistance patterns of these C. sakazakii isolates were examined for points of public health significance. A total of 234 contact sites in 78 domestic kitchens were tested for C. sakazakii. Consumers' used dishcloths and cleaning sponges were also tested. Antimicrobial susceptibility of the identified C. sakazakii isolates was determined for 10 antimicrobial drugs by means of the disk diffusion method. C. sakazakii was recovered from 26.9% of domestic kitchens visited. Multidrug resistance was observed; the highest resistance was to penicillin (76.1% of isolates) followed by tetracycline (66.6%), ciprofloxacin (57.1%), and nalidixic acid (47.6%). None of the C. sakazakii isolates were resistant to gentamicin. These results suggest that antibiotic-resistant C. sakazakii could be present at various sites in domestic kitchens.
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