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A survey of Australian oysters for the presence of human noroviruses

机译：对澳大利亚牡蛎中人类诺如病毒的调查

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摘要

Impending international policies for norovirus in oysters and the lack of Australian data suggested there was a need to undertake a national survey of norovirus in oysters. Two geographically distinct oyster-growing areas from each of three Australian states were sampled on 4 occasions during 2010 and 2011. The sites selected were considered by state shellfish authorities to be the most compromised with respect to the potential for human faecal contamination as identified by shoreline surveys. The oysters were tested for norovirus GI, GII and Escherichia coli. Norovirus GII was detected in two of 120 (1.7%) samples and norovirus GI was not detected. One of the norovirus positive samples was cloned and sequenced as GII.3. Five of 120 (4.2%) samples were found to have more than the guidance concentration of 230 E. coli per 100 g of shellfish but these samples did not contain detectable concentrations of norovirus. The apparently low prevalence of norovirus in oysters from Australian growing areas supports epidemiological data that suggests norovirus contamination of Australian oysters is rare. The results from this study emphasise the need for future norovirus control measures for shellfish to be commensurate with the risk associated with the growing area.
机译：牡蛎中诺如病毒的国际政策迫在眉睫，并且缺乏澳大利亚数据表明，有必要对牡蛎中诺如病毒进行全国性调查。在2010年至2011年期间，对来自澳大利亚三个州中每个州的两个地理上不同的牡蛎生长区域进行了采样。在由海岸线确定的人类粪便污染潜力方面，州贝类主管部门认为所选地点是危害最大的地点调查。测试牡蛎的诺如病毒GI，GII和大肠杆菌。在120个样本中，有两个（1.7％）检测到诺如病毒GII，而未检测到诺如病毒GI。克隆了一种诺如病毒阳性样品，并按GII.3进行了测序。每100克贝类中有120份样品中有5份（4.2％）的大肠杆菌浓度高于指导值230大肠杆菌，但这些样品中没有可检测到的诺如病毒浓度。澳大利亚产区牡蛎中诺如病毒的患病率很低，这为流行病学数据提供了证据，该数据表明诺如病毒对澳大利亚牡蛎的污染很少见。这项研究的结果强调，未来贝类诺如病毒控制措施的必要性应与生长区域相关的风险相称。

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  • 来源
    《Food microbiology》 |2014年第12期|264-270|共7页
  • 作者

    Felicity Brake; Tom Ross; Geoffrey Holds; Andreas Kiermeier; Catherine McLeod;

  • 作者单位

    Tasmanian Institute of Agriculture-School of Agricultural Science, University of Tasmania, Private Bag 51, Hobart 7001, Tasmania, Australia ,South Australian Research and Development Institute, G.P.O Box 397, Adelaide, South Australia 5001, Australia;

    Tasmanian Institute of Agriculture-School of Agricultural Science, University of Tasmania, Private Bag 51, Hobart 7001, Tasmania, Australia;

    South Australian Research and Development Institute, G.P.O Box 397, Adelaide, South Australia 5001, Australia;

    South Australian Research and Development Institute, G.P.O Box 397, Adelaide, South Australia 5001, Australia,Statistical Process Improvement Consulting & Training Pty. Ltd., Adelaide, South Australia, Australia;

    South Australian Research and Development Institute, G.P.O Box 397, Adelaide, South Australia 5001, Australia;

  • 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

    Norovirus; Shellfish; Escherichia coli; Foodborne pathogen;

    机译：诺如病毒贝类;大肠杆菌;食源性病原体;

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