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首页> 外文期刊>Eurosurveillance >Value of syndromic surveillance in monitoring a focal waterborne outbreak due to an unusual Cryptosporidium genotype in Northamptonshire, United Kingdom, June – July 2008
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Value of syndromic surveillance in monitoring a focal waterborne outbreak due to an unusual Cryptosporidium genotype in Northamptonshire, United Kingdom, June – July 2008

机译：2008年6月至2008年7月，在英国北安普敦郡，因有异常隐隐孢子虫基因型而引起的水源性疫情，系统监测的监测价值

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The United Kingdom (UK) has several national syndromic surveillance systems. The Health Protection Agency (HPA)/NHS Direct syndromic surveillance system uses pre-diagnostic syndromic data from a national telephone helpline, while the HPA/QSurveillance national surveillance system uses clinical diagnosis data extracted from general practitioner (GP)-based clinical information systems. Data from both of these systems were used to monitor a local outbreak of cryptosporidiosis that occurred following Cryptosporidium oocyst contamination of drinking water supplied from the Pitsford Reservoir in Northamptonshire, United Kingdom, in June 2008. There was a peak in the number of calls to NHS Direct concerning diarrhoea that coincided with the incident. QSurveillance data for the local areas affected by the outbreak showed a significant increase in GP consultations for diarrhoea and gastroenteritis in the week of the incident but there was no increase in consultations for vomiting. A total of 33 clinical cases of cryptosporidiosis were identified in the outbreak investigation, of which 23 were confirmed as infected with the outbreak strain. However, QSurveillance data suggest that there were an estimated 422 excess diarrhoea cases during the outbreak, an increase of about 25% over baseline weekly levels. To our knowledge, this is the first time that data from a syndromic surveillance system, the HPA/QSurveillance national surveillance system, have been able to show the extent of such a small outbreak at a local level. QSurveillance, which covers about 38% of the UK population, is currently the only GP database that is able to provide data at local health district (primary care trust) level. The Cryptosporidium contamination incident described demonstrates the potential usefulness of this information, as it is unusual for syndromic surveillance systems to be able to help monitor such a small-scale outbreak.
机译：英国（UK）有几个国家的症状监测系统。卫生保护局（HPA）/ NHS直接症状监测系统使用来自国家电话帮助热线的预诊断症状数据，而HPA / QSurveillance国家监测系统使用从基于全科医生（GP）的临床信息系统中提取的临床诊断数据。来自这两个系统的数据都用于监测在2008年6月从英国北安普敦郡的Pitsford水库提供的饮用水的隐孢子虫卵囊污染之后发生的隐孢子虫病局部爆发。到NHS的电话数量达到峰值与事件同时发生的直接腹泻。问：受疫情影响的当地地区的监视数据显示，在事件发生的那一周，腹泻和胃肠炎的全科医生诊治显着增加，但呕吐诊治没有增加。在暴发调查中总共鉴定出33例隐孢子虫病临床病例，其中23例确诊感染了暴发菌株。但是，QSurveillance数据表明，暴发期间估计有422例腹泻过多，比每周基线水平增加了约25％。据我们所知，这是综合症状监测系统（HPA / QSurveillance国家监测系统）的数据首次能够在本地显示这种小规模爆发的程度。 QSurveillance覆盖了英国约38％的人口，目前是唯一能够提供本地医疗区（初级医疗信托）级别数据的GP数据库。所描述的隐孢子虫污染事件证明了此信息的潜在实用性，因为症状监测系统能够帮助监视如此小规模的疫情是罕见的。

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