Antimicrobial resistance in Salmonella serotypes isolated from slaughter animals in Kenya
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Date
2007Author
Kikuvi, GM
Ombui, JN
Mitema, ES
Schwarz, S
Type
ArticleLanguage
enMetadata
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To isolate Salmonella from food animals and characterise the antimicrobial resistance of the isolates.
A random sampling of slaughter animals was carried out.
Department of Public Health, Pharmacology and Toxicology, University of Nairobi, Kenya and Institute for Animal Breeding, Neustadt-Mariensee, Germany.
Two hundred and eighty five samples, including faecal samples and carcass, cloacal and pharyngeal swab samples were analysed.
Sixteen (5.6%) of 285 samples were positive for Salmonella. The prevalence of Salmonella on pig carcasses (19%) was higher than in faeces (8.6%). Three Salmonella enterica sub-species enterica serovars, namely Saintpaul (S. Saintpaul), Braenderup (S. Braenderup), and Heidelberg (S. Heidelberg), were identified, with S. Saintpaul being the predominant serovar. Antimicrobial resistance was found in 35.7% of all the isolates. The S. Heidelberg isolates were susceptible to all the antimicrobial agents tested. Multidrug resistance was found in 7.1% of the resistant Salmonella isolates. Plasmids were only detected in S. Heidelberg. Ampicillin resistance was based on expression of a bla(TEM) gene, while chloramphenicol, streptomycin, and tetracycline resistances were encoded by the genes catAl, strA, and tet(A), respectively.
Pigs may serve as reservoirs of antimicrobial resistant Salmonella and slaughterhouse cross-contamination of pork may be a food safety risk. We recommended that slaughterhouse hygiene be improved to minimise contamination of pig carcasses.
URI
http://www.ncbi.nlm.nih.gov/pubmed/17892198http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/32820
Citation
Kikuvi GM, Ombui JN, Mitema ES, Schwarz S (). Antimicrobial resistance in Salmonella serotypes isolated from slaughter animals in Kenya. East Afr Med J. 2007 May;84(5):233-9.Publisher
Department of Public Health, Pharmacology and Toxicology, University of Nairobi, Kenya.