Prevalence and antibiotic-resistance of Salmonella isolated from beef sampled from the slaughterhouse and from retailers in Dakar (Senegal)

6533b827fe1ef96bd1285c8d

RESEARCH PRODUCT

Prevalence and antibiotic-resistance of Salmonella isolated from beef sampled from the slaughterhouse and from retailers in Dakar (Senegal)

Michel Catteau Youssouf Kaboré Antoine Stevens Jean-david Perrier-gros-claude Yves Millemann B. Dufour Anne Brisabois Jean-françois Cavin

subject

Serotype Veterinary medicine Salmonella Meat Spectinomycin Tetracycline Food Contamination Microbial Sensitivity Tests Biology medicine.disease_cause Microbiology Microbiology Antibiotic resistance Salmonella Drug Resistance Multiple Bacterial Drug Resistance Bacterial Prevalence medicine Animals Humans Serotyping Phylogeny Sulfamethoxazole Chloramphenicol food and beverages Hygiene General Medicine Senegal Anti-Bacterial Agents Consumer Product Safety Streptomycin Food Microbiology Cattle Abattoirs Food Science medicine.drug

description

A study was made of Salmonella contamination in beef sampled from a slaughterhouse and from retailers in Dakar, Senegal. The serotypes as well as antibiotic-resistance patterns of the Salmonella isolates were determined. A total of 435 meat samples (236 from the slaughterhouse, 199 from retailers) were tested. Among them, 275 (63%) were positive for Salmonella, 43% (101/236) from the slaughterhouse and 87% (174/199) from the retailers. Furthermore, 97% of the investigated retailers had at least one beef sample contaminated by Salmonella. The 286 Salmonella isolates were divided into 51 serotypes. The most prevalent serotypes were Salmonella bredeney (25%), S. muenster (8%), S. waycross (7%), S. corvallis (4%) and S. kentucky (4%). About 62% of the isolates were resistant to nitrofurans. Resistance rates were lower to streptomycin (22%), sulfamethoxazole (15%), spectinomycin (1%), chloramphenicol (1%), and tetracycline (0,4%) while low-level resistance to quinolones was detected. About 16% of the Salmonella strains were multiresistant to two or more antibiotic families. Finally, ten resistance profiles have been identified. This study shows the huge spread of Salmonella in the beef production chain in Dakar, Senegal. Finally, this study provides the very first data about Salmonella prevalence in sub-saharian Africa.

year	journal	country	edition	language
2005-08-03	International Journal of Food Microbiology

https://doi.org/10.1016/j.ijfoodmicro.2006.04.018