Antibiotic resistance of Escherichia coli isolated from healthy food animals in Kenya.

The Kenya Veterinarian Pub Date : 2007-10-30 DOI:10.4314/KENVET.V30I1.39620

I. Mapenay, G. Kikuvi, E. Mitema, J. Ombui

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引用次数: 2

Abstract

The antimicrobial resistance profile of 204 Escherichia coli isolates of bovine, swine and poultry origin to eight (8) antimicrobial agents was studied. Antimicrobial susceptibility tests were determined using the disk diffusion technique. Full sensitivity to all the eight antimicrobial agents in the test panel was observed in 46 % of all isolates. Resistance to at least one antimicrobial was observed in 10 % of the isolates while multi-drug resistance (two or more antibiotics) was observed in 26 % of the isolates. Generally, resistance was significantly higher for isolates from swine and poultry than in cattle. The overall prevalence was 22 % for sulfamethoxazole, 21 % for co-trimoxazole, 19 % for ampicillin, 14 % for tetracycline, 9 % for streptomycin, 4.4 % for chloramphenicol and 2.5 % for kanamycin. No resistance was observed for gentamycin. It was concluded from the study that healthy food animals form a reservoir of multiple resistant E. coli which may be transmitted to humans through the food chain. Thus, continued surveillance of E. coli obtained from food production continuum is merited to identify emerging antimicrobial-resistant phenotypes. The Kenya Veterinarian Vol. 30 (1) 2006: pp. 23-27

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从肯尼亚健康食用动物中分离的大肠杆菌的抗生素耐药性。

研究了204株牛、猪、禽源大肠埃希菌对8种抗菌素的耐药性。采用纸片扩散法进行药敏试验。在所有分离株中，有46%对试验组中所有8种抗菌素完全敏感。在10%的分离株中观察到至少对一种抗菌素耐药，而在26%的分离株中观察到多重耐药(两种或更多种抗生素)。一般来说，猪和家禽分离株的耐药性明显高于牛分离株。磺胺甲恶唑的总患病率为22%，复方新诺明为21%，氨苄西林为19%，四环素为14%，链霉素为9%，氯霉素为4.4%，卡那霉素为2.5%。庆大霉素未见耐药。从研究中得出结论，健康的食用动物形成了多种耐药大肠杆菌的储存库，这些大肠杆菌可能通过食物链传播给人类。因此，对从食品生产连续体中获得的大肠杆菌进行持续监测是值得的，以确定新出现的抗菌素耐药表型。肯尼亚兽医Vol. 30 (1) 2006: pp. 23-27

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The Kenya Veterinarian

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