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1起幼儿园手足口病暴发疫情分析 被引量:4

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摘要 目的寻找幼儿园手足口病暴发的危险因素,为有效控制手足口病疫情提供依据。方法制定病例定义开展病例搜索,病例定义:2010年2月24日至3月18日,某幼儿园中儿童手或足出现斑丘疹或疱疹者或口腔黏膜出现疱疹者i病例搜索由调查者在幼儿园所有班级中进行,并开展现场问卷调查和病例对照研究,病例组选取全部病例,对照组选自病例所在班级未发病者;采集病例的粪便或咽拭子样本。采用Real—time荧光PCR方法检测肠道病毒(EV)、肠道病毒71型(EV71)、柯萨奇病毒A16(CoxA16)核酸。结果共搜索到24例病例,罹患率为6.9%(24/346)。首例病例于2月26日发病,末例病例于3月9日发病,首例病例发病后出现2个发病高峰,分别为3月2日和3月6日,每个发病高峰间隔4d,每个高峰间隔为1代病例,共有3代病例。病例对照研究的结果显示,开学前混班上课可能是手足口病暴发的危险因素(OR=2.8,95%CI为1.02~7.72)。采集6份病例粪便样本中检出6份EV核酸阳性,3份CoxA16核酸阳性;5份咽拭子中检出3份EV核酸阳性。结论开学前混班上课儿童密切接触是幼儿园手足口病暴发的危险因素;停课等措施对控制疫情有明显效果。
出处 《华南预防医学》 2011年第3期56-58,共3页 South China Journal of Preventive Medicine
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