首页> 外文OA文献 >Molecular Epidemiological Survey of Listeria monocytogenes in Seafoods and Seafood-Processing Plants
【2h】

Molecular Epidemiological Survey of Listeria monocytogenes in Seafoods and Seafood-Processing Plants

机译:海鲜和海鲜加工厂中李斯特菌的分子流行病学调查

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

To evaluate the role of seafoods in the epidemiology of human listeriosis and the role of the processing environment as a source of Listeria monocytogenes in seafood products, 305 L. monocytogenes isolates were characterized by multilocus enzyme electrophoresis using 21 genetic loci and restriction enzyme analysis of total DNA. Forty-four isolates were recovered from patients in Norway; 93 were isolated from seafoods, seafood-processing environments, and seawater from 55 different producers; and the remaining 168 isolates originated from six seafood-processing plants and one transport terminal examined in detail for L. monocytogenes. The patient isolates fell into 11 electrophoretic types, with four of them being responsible for 77% of the listeriosis cases in 1992 to 1996. Isolates from Norwegian seafoods and processing environments showed great genetic diversity, indicating that seafoods and seafood-processing environments do not offer a niche for specific L. monocytogenes strains. On the other hand, isolates from individual processing plants were genetically more homogenous, showing that plants are likely to be colonized with specific subclones of L. monocytogenes. The isolation of identical subclones of L. monocytogenes from both human patients and seafoods, including ready-to-eat products, suggests that such products may have been possible sources for listeriosis cases in Norway.
机译:为了评估海鲜在人类李斯特菌病流行病学中的作用以及加工环境作为海鲜产品中单核细胞增生李斯特菌的来源的作用,使用多基因座酶电泳(使用21个遗传基因座和限制性酶切分析)对305株单核细胞增生李斯特菌进行了表征。脱氧核糖核酸。从挪威患者中回收了44株分离株。从55个不同生产者的海鲜,海鲜加工环境和海水中分离出93种;其余的168种分离物来自6个海鲜加工厂和一个运输终端,详细检查了单核细胞增生李斯特菌。患者分离株分为11种电泳类型,其中4种占1992年至1996年李斯特菌病病例的77%。来自挪威海产品和加工环境的分离株显示出巨大的遗传多样性,表明海产品和海产品加工环境无法提供特定单核细胞增生李斯特菌菌株的利基市场。另一方面,来自单个加工植物的分离物在遗传上更均一,表明植物可能被单核细胞增生李斯特菌的特定亚克隆定殖。从人类患者和海鲜中分离出相同的单核细胞增生李斯特氏菌亚克隆,包括即食产品,这表明此类产品可能已成为挪威李斯特菌病病例的来源。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号