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MRSA and multidrug-resistant Staphylococcus aureus in U.S. retail meats, 2010-2011

机译：2010-2011年美国零售肉类中的MRSA和耐多药金黄色葡萄球菌

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摘要

Methicillin-resistant Staphylococcus aureus (MRSA) has been detected in retail meats, although large-scale studies are scarce. We conducted a one-year survey in 2010-2011 within the framework of the National Antimicrobial Resistance Monitoring System. Among 3520 retail meats collected from eight U.S. states, 982 (27.9%) contained S. aureus and 66 (1.9%) were positive for MRSA. Approximately 10.4% (107/ 1032) of S. aureus isolates, including 37.2% (29/78) of MRSA, were multidrug-resistant (MDRSA). Turkey had the highest MRSA prevalence (3.5%), followed by pork (1.9%), beef (1.7%), and chicken (0.3%). Whole-genome sequencing was performed for all 66 non-redundant MRSA. Among five multilocus sequence types identified, ST8 (72.7%) and ST5 (22.7%) were most common and livestock-associated MRSA ST398 was assigned to one pork isolate. Eleven spa types were represented, predominately t008 (43.9%) and t2031 (22.7%). All four types of meats harbored t008, whereas t2031 was recovered from turkey only. The majority of MRSA (84.8%) possessed SCCmec Ⅳ and 62.1% harbored Panton-Valentine leukocidin. Pulsed-field gel electrophoresis showed that all ST8 MRSA belonged to the predominant human epidemic clone USA300, and others included USA100 and USA200. We conclude that a diverse MRSA population was present in U.S. retail meats, albeit at low prevalence.
机译：尽管缺乏大规模研究，但在零售肉中已检测到耐甲氧西林金黄色葡萄球菌（MRSA）。我们在国家抗菌素耐药性监测系统的框架下于2010-2011年进行了为期一年的调查。从美国八个州收集的3520种零售肉中，有982（27.9％）含有金黄色葡萄球菌，MRSA阳性的有66（1.9％）。大约10.4％（107/1032）的金黄色葡萄球菌分离株，包括37.2％（29/78）的MRSA，是耐多药（MDRSA）的。土耳其的MRSA患病率最高（3.5％），其次是猪肉（1.9％），牛肉（1.7％）和鸡肉（0.3％）。对所有66个非冗余MRSA进行了全基因组测序。在确定的五种多基因座序列类型中，ST8（72.7％）和ST5（22.7％）最常见，与牲畜相关的MRSA ST398被分配给一种猪肉分离株。代表了11种水疗中心类型，主要是t008（43.9％）和t2031（22.7％）。所有四种类型的肉都含有t008，而t2031仅从火鸡中回收。大多数MRSA（84.8％）拥有SCCmecⅣ，而62.1％拥有Panton-Valentine白细胞抑制素。脉冲场凝胶电泳显示，所有ST8 MRSA均属于人类流行的主要克隆USA300，其他包括USA100和USA200。我们得出的结论是，尽管流行率较低，但美国零售肉类中仍存在多种MRSA种群。

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  • 来源
    《Food microbiology》 |2017年第4期|289-297|共9页
  • 作者

    Beilei Ge; Sampa Mukherjee; Chih-Hao Hsu; Johnnie A. Davis; Thu Thuy T. Tran; Qianru Yang; Jason W. Abbott; Sherry L. Ayers; Shenia R. Young; Emily T. Crarey; Niketta A. Womack; Shaohua Zhao; Patrick F. McDermott;

  • 作者单位

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, 8401 Muirkirk Road, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA,The Procter and Gamble Company, Mason, OH 45040, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA,Centers for Disease Control and Prevention, Atlanta, GA 30333, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

    Division of Animal and Food Microbiology, Office of Research, Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD 20708, USA;

  • 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

    MRSA; LA-MRSA; ST398; USA300; MDRSA; Retail meat;

    机译：MRSA;LA-MRSA;ST398;美国300;MDRSA;零售肉类;

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