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目的继续稳步推进消除麻疹工作,进一步为消除麻疹提供防控策略和措施,努力实现消除麻疹目标。方法收集整理2013—2015年绵阳市所有麻疹监测病例个案信息,运用描述流行病学方法对全市麻疹疫情状况及流行病学特征进行分析。结果麻疹年平均发病率0.32/10万,无暴发疫情,无死亡病例。流行的麻疹病毒基因型为H1型。病例人群分布主要是8月龄以下、8月龄~2岁及15岁以上人群,构成比分别是20.00%、31.11%、37.78%;发病时间集中在4和5月,占全年发病数的48.89%;全市12个县市区有10个县市区有病例报告,年均发病率居前3位的是游仙区、涪城区和三台县。属于免疫规划管理的8月龄~14岁病例中有63.16%的病例有1剂次以上免疫史,36.84%的病例无免疫史。2岁以下婴幼儿病例发病前去过医院的占45.45%,医院感染可能性大。结论绵阳市麻疹消除工作受阻。全市在扎实推进常规免疫工作的同时,需要加强对重点地区和薄弱人群的免疫规划管理。加强对疫苗冷链、疫苗计划和接种技术操作方面的监管、督导和培训。将8月龄~2岁的散居儿童、流动儿童作为重点管理对象,确保麻疹类疫苗合格接种率≥95%。加强医院感染控制,防止疫情传播蔓延。
Objectives Continue to steadily push forward the elimination of measles and further provide prevention and control strategies and measures to eradicate measles and strive to eliminate measles. Methods The case information of all measles surveillance cases in Mianyang from 2013 to 2015 was collected and analyzed. Epidemiological methods were used to analyze the epidemic situation and epidemiological characteristics of measles in the city. Results The average annual incidence rate of measles was 0.32 / lakh, with no outbreaks and no deaths. The popular measles virus genotype is H1. The distribution of case population was mainly below 8 months old, from 8 months old to 2 years old and above 15 years old, with the proportions of 20.00%, 31.11% and 37.78% respectively; the onset time was concentrated in April and May, accounting for the annual incidence 48.89%; There are 10 county cities and 12 districts in the city have case reports, the annual average incidence of the top three are the Youxian District, Fucheng District and Santai County. 63.16% of cases aged 8 months to 14 years who are under the management of immunization programs have an immunization history of more than 1 dose, and 36.84% of cases have no history of immunization. Infants and children under 2 years of age have been to the hospital before the onset of the disease accounted for 45.45%, the possibility of hospital infection. Conclusion The elimination of measles in Mianyang City was blocked. While promoting the routine immunization work in the city, the city needs to strengthen the administration of immunization programs in key areas and vulnerable groups. Strengthened supervision, supervision and training on vaccine cold chain, vaccine planning and vaccination technology operation. The scattered children and migrant children aged from 8 months to 2 years will be the key management targets to ensure that the measles vaccination rate is ≥95%. Strengthen hospital infection control to prevent the spread of the epidemic.