河南省2010年麻疹流行病学分析及监测系统运转评价

Analysis of measles epidemiologic characteristics and evaluation of monitoring system in Henan province in 2010

目的:分析2010年河南省麻疹流行病学特征,评价麻疹专病报告管理系统的运转情况。方法:采用描述流行病学方法,分析麻疹流行特征并评价麻疹专病监测信息报告系统的敏感性、及时性和特异性。结果:河南省2010年共报告麻疹病例2250例,5岁以下病例占病例总数的76.53%,散居儿童占74.71%。8～11个月龄病例中,接种疫苗0剂次者占65.22%。2010年麻疹专病监测信息报告系统共监测到麻疹疑似病例3018例,确诊2250例,排除768例,排除病例发病率为0.94/10万,疑似病例48h完整调查率为92.05%,血清学结果7d内及时报告率为78.55%,暴发疫情血清学确诊率为92.31%,血标本采集率为75.67%。结论:5岁以下病例所占比例较高,主要原因有母传抗体水平降低、院内感染以及对麻疹传染源的控制不力等。8～11个月龄0剂次所占比例高,体现了麻疹疫苗首针接种不及时的问题。麻疹专病监测信息报告系统2010年的及时性、特异性及敏感性均高于2009年。

Aim：To analyze the measles epidemiologic characteristics,and to evaluate the measles monitoring system in Henan province in 2010.Methods：Descriptive epidemiology was employed to analyze the epidemiologic characteristics and to evaluate the monitoring system.Results：A total of 2 250 measles cases were reported in Henan province in 2010,out of which,cases younger than 5 years accounted for 76.53%.Scattered children accounted for 74.71% of all cases.65.22% of the cases between 8 and 11 months had not been vaccinated.A total of 3 018 suspected measles cases were reported through measles monitoring system in 2010,including 2 250 confirmed case and 768 ruled out cases,and the morbidity of ruled out cases was 0.94/100 000.92.05% of all the suspected measles cases were surveyed within 48 hours,and 75.67% of suspected measles cases were collected serological specimens.78.55%of all the serological specimens were reported laboratory test result within 7 days.Conclusion：The percentage of cases younger than 5 years is high.The main causes include mother preach antibody level is weaker in vaccine sera,hospital infection exists and the management of infection source is poor.The percentage of nonimmune cases is high,reflecting vaccination is not prompt.The timeliness,specificity and sensibility of measles monitoring system in Henan in 2010 is better than in 2009.