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The prevalence, antimicrobial resistance and PFGE profiles of Laribacter hongkongensis in retail freshwater fish and edible frogs of southern China

机译:中国南方零售淡水鱼和食用蛙中香港杆菌的流行,抗药性和PFGE谱

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摘要

Laribacter hongkongensis is a novel emerging pathogen associated with human gastroenteritis. We aimed to investigate the prevalence, antimicrobial resistance and genotypic relationship of 199 L hongkongensis isolates from 690 intestinal samples of fish and frogs. These samples were collected from retail markets in the city of Guangzhou in southern China from October 2008 to September 2009. L. hongkongensis was detected in from 80 (16.3%) out of 490 freshwater fish, and this number included 76 (32.3%) out of 235 grass carp and 4 (14.8%) out of 27 bighead carp. A higher isolation rate of 59.5% (119 out of 200) was observed in edible frogs. The isolation rate was highest in the spring in comparison with other seasons. Notably, 63.8% of the isolates were resistant to at least one class of antimicrobial agents. Analysis by pulsed-field gel electrophoresis (PFGE) revealed that the isolates could be grouped into three clusters. Isolates from fish intestines were grouped into two clusters: cluster I and II. Isolates of frog-origin and several fish-origin isolates were grouped into cluster III. Two patient-derived strains could be classed into cluster III. Extensive genetic heterogeneity among the isolates was observed. The results indicate that L hongkongensis isolates exhibits host tropism, extensive resistance to widely used antimicrobials and diverse biological evolution in an aquatic environment. The frog is more likely than the freshwater fish to be the potential source for human infection with L. hongkongensis.
机译:香港漆器是一种新型的与人胃肠炎有关的新兴病原体。我们的目的是调查从690份鱼和青蛙肠道样本中分离出的199 L Hongkongensis分离株的流行,抗药性和基因型关系。这些样本是从2008年10月至2009年9月在中国南方广州市的零售市场上采集的。在490种淡水鱼中,有80种(16.3%)被检出为香港乳杆菌,而其中的76种(32.3%)被检出。 27头big鱼中有235头草鱼和4头(14.8%)。在食用青蛙中,检出率更高,为59.5%(200个中的119个)。与其他季节相比,春季的隔离率最高。值得注意的是,63.8%的分离株对至少一类抗菌剂具有抗药性。脉冲场凝胶电泳(PFGE)分析表明,分离株可分为三个簇。鱼肠分离物分为两类:第一类和第二类。青蛙起源的分离株和几种鱼类起源的分离株被归为第三类。两种来自患者的菌株可以分类为群集III。在菌株之间观察到广泛的遗传异质性。结果表明,L hongkongensis分离株在水生环境中表现出宿主嗜性,对广泛使用的抗菌剂的广泛耐药性以及多种生物进化。青蛙比淡水鱼更可能成为人类感染香港乳杆菌的潜在来源。

著录项

  • 来源
    《Food microbiology》 |2012年第1期|p.118-123|共6页
  • 作者单位

    Department of Epidemiology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China,Key Laboratory of Prevention and Control of Emerging Infectious Diseases of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, Guangdong Province 510515, China;

    Department of Epidemiology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China;

    Department of Epidemiology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China;

    Department of Epidemiology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China,Key Laboratory of Prevention and Control of Emerging Infectious Diseases of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, Guangdong Province 510515, China;

    Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan;

    Department of Epidemiology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China;

    Department of Epidemiology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China;

    College of Light Industry and Food Science, South China University of Technology, Guangzhou 510000, China;

    Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan;

    Department of Epidemiology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China,Key Laboratory of Prevention and Control of Emerging Infectious Diseases of Guangdong Higher Education Institutes, Southern Medical University, Guangzhou, Guangdong Province 510515, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    laribacter hongkongensis; prevalence; antimicrobial resistance; PFGE;

    机译:香港漆器患病率抗菌素耐药性通用电气;

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