丁华, 邓晶, 谢立, 孙昼, 干伟群, 缪凡, 张薇. 一起涉及7所学校的Ⅰ型诺如病毒感染性腹泻暴发调查[J]. 疾病监测, 2010, 25(4): 279-281. DOI: 10.3784/j.issn.1003-9961.2010.04.010
引用本文: 丁华, 邓晶, 谢立, 孙昼, 干伟群, 缪凡, 张薇. 一起涉及7所学校的Ⅰ型诺如病毒感染性腹泻暴发调查[J]. 疾病监测, 2010, 25(4): 279-281. DOI: 10.3784/j.issn.1003-9961.2010.04.010

一起涉及7所学校的Ⅰ型诺如病毒感染性腹泻暴发调查

  • 摘要: 目的 调查2008年3月浙江省杭州市余杭区塘栖三中等7所学校发生Ⅰ型诺如病毒感染性腹泻暴发疫情的原因,并采取控制措施。 方法 开展问卷调查和病例对照研究,采用SPSS 13.0软件进行数据分析;采集病例肛拭子、咽拭子及呕吐物等样本进行诺如病毒PCR检测。 结果 检出诺如病毒阳性标本32份;饮桶装水量与患病之间呈正相关(r=0.900,P=0.037);饭前便后洗手频次与患病间呈负相关(r=-1.000,P=0.000);同宿舍或同伴存在病例与患病间存在统计学关联 。 结论 Ⅰ型诺如病毒病原体污染的桶装水为共同暴露源,同时存在学生间的密切接触传播和患者呕吐物、粪便形成的气溶胶传播等多种传播途径。

     

    Abstract: Objective To survey the cause of an outbreak of infectious diarrhea in 7 middle schools in Tangxi township of Yuhang country, and take control measures. Methods Questionnaire survey and case-control study were conducted, the data were analyzed statistically by using SPSS 13.0. The anal swabs, throat swabs and vomits were taken to detect norovirus by PCR. Results Thirty two samples were detected to be norovirus positive. The positive correlation was observed between the disease onset and the amount of barrelled water drinking (r=0.900,P=0.037), the negative correlation was found between the disease onset and the frequency of washing hands before eating and after defecating(r=-1.000,P=0.000), and Roommates or close contacts of the cases were found to be associated with the disease statistically . Consicluon The contamination of barrelled water by norovirus type I was the infectious source of the disease, meanwhile there were other transmission routes which included close contacting with the patients and the spread of aerosols formed from the patients vomits and feces.

     

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