2009-2011年云南省手足口病流行病学特征分析

Epidemiology Analysis of Hand-foot-mouth Disease in Yunnan Province,2009-2011

目的了解云南省手足口病的流行特征,为防控提供科学的依据。方法用描述流行病学方法和χ2检验,对2009-2011年疾病监测系统报告的云南省手足口病病例进行分析。结果 2009-2011年,手足口病在全省均有发病,年报告发病率分别为33.17/10万、106.30/10万、84.97/10万,流行高峰主要在4~7月,病例主要集中在5岁以下儿童,尤其是1~3岁儿童,职业分布以散居儿童和幼托儿童为主;低年龄组、就诊不及时、散居儿童和幼托儿童是发生重症的高危因素;实验室检测EV71占53.44%（3 546/6 635）,Cox A16占44.55%（2 956/6 635）。结论手足口病在云南省广泛流行,病原主要为EV71和Cox A16。就诊不及时、低年龄组儿童是发生重症的危险因素。

Objective To evaluate the epidemic features of hand-foot-mouth disease（HFMD）in Yunnan province from 2009to 2011,and to provide scientific basis for prevention and control strategies for the disease.Methods Descriptive epidemiology andχ 2 test were both conducted on data of the patients reported by Disease Monitoring System in Yunnan province from 2009to 2011.Results Cases were reported from all over the province,and the annual incidence from 2009to 2011were respectively 33.17/ 105,106.30/105and 84.97/105.The height of the incidence was during April to July,mainly concentrated in children under age of 5,especially 1-3years old.As for professional distribution,scattered children and kindergarten children were the main vulnerable population.Low age group,delayed doctor visiting,scattered children and kindergarten children were risk factors for severe cases.The proportion of cases caused by EV71and CoxA16were respectively 53.44%（3 546/6 635）and 44.55%（2 956/6 635）.Conclusion HFMD are more and more widespread in Yunnan province and most cases are caused by EV71and Cox A16.Delayed doctor visiting and low age are risk factors of severe cases.