Antibiotic resistance of faecal Escherichia coli in poultry, poultry farmers and poultry slaughterers

The percentage of faecal samples containing resistant Echerichia coli and the proportion of resistant faecal E. coli were determined in three poultry populations: broilers and turkeys commonly given antibiotics, and laying hens treated with antibiotics relatively infrequently. Faecal samples of five...

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Bibliographic Details
Published in:Journal of antimicrobial chemotherapy 2001-06, Vol.47 (6), p.763-771
Main Authors: van den Bogaard, A. E., London, N., Driessen, C., Stobberingh, E. E.
Format: Article
Language:English
Subjects:
Agriculture
Animals
Anti-Bacterial Agents - pharmacology
Antibacterial agents
Antibiotics. Antiinfectious agents. Antiparasitic agents
Biological and medical sciences
Drug Resistance, Microbial - genetics
Electrophoresis, Gel, Pulsed-Field
Escherichia coli - drug effects
Escherichia coli - genetics
Escherichia coli - physiology
Escherichia coli Infections - microbiology
Feces - microbiology
Gene Frequency
Humans
Medical sciences
Microbial Sensitivity Tests
Pharmacology. Drug treatments
Poultry - microbiology
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Summary:The percentage of faecal samples containing resistant Echerichia coli and the proportion of resistant faecal E. coli were determined in three poultry populations: broilers and turkeys commonly given antibiotics, and laying hens treated with antibiotics relatively infrequently. Faecal samples of five human populations were also examined: turkey farmers, broiler farmers, laying-hen farmers, broiler slaughterers and turkey slaughterers. The MICs of antibiotics commonly used in poultry medicine were also determined. Ciprofloxacin-resistant isolates from these eight populations and from turkey meat were genotyped by pulsed-field gel electrophoresis (PFGE) after SmaI digestion. The proportion of samples containing resistant E. coli and the percentages of resistant E. coli were significantly higher in turkeys and broilers than in the laying-hen population. Resistance to nearly all antibiotics in faecal E. coli of turkey and broiler farmers, and of turkey and broiler slaughterers, was higher than in laying-hen farmers. Multiresistant isolates were common in turkey and broiler farmers but absent in laying-hen farmers. The same resistance patterns were found in turkeys, turkey farmers and turkey slaughterers and in broiler, broiler farmers and broiler slaughterers. The PFGE patterns of the isolates from the eight populations were quite heterogeneous, but E. coli with an identical PFGE pattern were isolated at two farms from a turkey and the farmer, and also from a broiler and a broiler farmer from different farms. Moreover, three E. coli isolates from turkey meat were identical to faecal isolates from turkeys. The results of this study strongly indicate that transmission of resistant clones and resistance plasmids of E. coli from poultry to humans commonly occurs.
ISSN:0305-7453
1460-2091
1460-2091
DOI:10.1093/jac/47.6.763