Persson L, Olsson B, Franklin A
Scand J Infect Dis. 1980;12(4):289-94. doi: 10.3109/inf.1980.12.issue-4.09.
308 strains of coliform bacteria isolated from food of various origin were identified and their resistance patterns were studied. The strains belonged to 10 different species and Escherichia coli was the most common. Coliforms isolated from samples incubated at 44 degrees C were more often identified as E. coli than coliforms isolated from samples incubated at 37 degrees C. Klebsiella and Enterobacter spp. taken together were, on the contrary, mor often isolated at 37 degrees C than at 44 degrees C. E. coli was most frequently isolated from raw meat and egg products. Klebsiella dn Enterobacter spp. more often in other types of products. 54% of the strains were resistant to at least one of the 9 antibiotics tested. Resistance to nitrofurantoin and sulphaisodimidine was most frequent (30 and 25% respectively). No strain resistant to streptomycin, neomycin or trimethoprim/sulphamethoxazole was registered. 40% of the resistant strains were multiresistant. The lowest number of resistant strains was recorded from custards and desserts and from raw meat products (42 and 46% respectively) and the highest from ice-cream (89%). Multiresistant strains were recorded most frequently from pasteurized milk products, custards and desserts. None of the 66 multiresistant strains tested could transfer the resistance to E. coli in vitro. The results do not indicate that food of animal origin in Sweden represents a source for bacteria with transferable resistance determinants.
对从各种来源的食品中分离出的308株大肠菌群进行了鉴定，并研究了它们的耐药模式。这些菌株属于10个不同的种，其中大肠杆菌最为常见。与在37℃培养的样品中分离出的大肠菌群相比，在44℃培养的样品中分离出的大肠菌群更常被鉴定为大肠杆菌。相反，克雷伯菌属和肠杆菌属在37℃下比在44℃下更常被分离出来。大肠杆菌最常从生肉和蛋类产品中分离出来。克雷伯菌属和肠杆菌属在其他类型的产品中更常见。54%的菌株对所测试的9种抗生素中的至少一种耐药。对呋喃妥因和磺胺异二甲嘧啶的耐药最为常见（分别为30%和25%）。未发现对链霉素、新霉素或甲氧苄啶/磺胺甲恶唑耐药的菌株。40%的耐药菌株具有多重耐药性。从蛋奶糊和甜点以及生肉制品中分离出的耐药菌株数量最少（分别为42%和46%），而从冰淇淋中分离出的耐药菌株数量最多（89%）。多重耐药菌株最常从巴氏杀菌奶制品、蛋奶糊和甜点中分离出来。所测试的66株多重耐药菌株中，没有一株能在体外将耐药性转移给大肠杆菌。结果表明，瑞典的动物源性食品并非具有可转移耐药决定因素细菌的来源。
