河北省食品中沙门氏菌的耐药性研究

A STUDY ON THE ANTIBIOTIC RESISTANCE OF SALMONELLA SPP IN HEBEI PROVINCE

目的:了解河北省食品中沙门氏菌的污染状况和耐药水平。方法:根据GB4789·4-2003和全国食品污染物监测致病菌检测方法进行沙门氏菌的分离鉴定,用K-B法测定沙门氏菌的耐药性。结果:2005年从河北省6个市的生肉、水产品和奶粉共387份食品中分离到81株沙门氏菌,分离率为20·9%。91·3%的沙门氏菌对1种以上抗生素耐药,16·1%的对5种以上抗生素耐药,8株对10种以上抗生素耐药,耐药最多的一株菌耐17种抗生素。结论:河北省生肉及水产品中沙门氏菌的污染率和耐药性较高,应限制抗生素在食源性动物饲养过程中的应用,保障食品安全。

Objective： To investigate the contamination status of Salmonella spp in foods in Hebei province and the antibiotic resistance of Salmonella spp. isolates. Methods： Salmonella spp. strains were isolated and identified according to the National Standard Methods and National active foodhorne pathogens surveillance system. The antimicrobial susceptibility of the isolates was determined by K - B method. Results： 81 strains of Salmonella spp were isolated from a total of 387 samples of foods （ raw meats, aquatic product and milk powder）, with a rate of 20.9%, The samples were obtained from 6 cities in Hebel province in 2005. 91.3% of the isolates were resistant to one or more antibiotics, 16.1% of the isolates were resistant to 5 or more antibiotics. 8 isolates with the highest level of antibiotic resistance were resistant to 10 or more antibiotics, one isolates were resistant to 17 of the 23 tested antibiotics. Conclusion： Foods in Hebei contaminated Salmonella spp, particularly in raw meats and aquatic product, and the antibiotic resistance of Salmonella spp. isolates was high. It is necessary to restrict the use of antimicrobial agents in animals bred which is a food source for humans. The government office should reinforce their survey to prevent the foodhorne disease caused by Salmonella spp.