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我县自1987年开展冷链运转以来,随着人群麻疹疫苗接种率的不断提高,麻疹发病随之得到了明显控制,1989和1990年两年无病例报告。但1991年3月我县石榴坪乡发生麻疹病例以来,疫情不断扩大,到12月底全县有14个乡(镇)、28个村发生235例,发病率达97.54/10万。死亡一例,病死率0.43％。暴发流行于5乡8个村,病例数占总病例数的65.53(154/235)现将调查情况报告如下:一、流行特征:1.城乡发病比较:城镇发病率190.63/10万(52例),农村发病率85.66/10万(183例),城市发病率明显高于农村,x~2=27.35,P<0.01。2.发病时间:自3月下旬报告病例以来,发病
Since the cold-chain operation started in 1987 in our county, the incidence of measles has been significantly controlled as the population vaccination rate continues to rise. There were no case reports in 1989 and 1990. However, since the outbreak of measles in Pomegranate Township, my county in March 1991, the epidemic has been continuously expanding. By the end of December, there were 14 townships (towns) in the county and 235 cases in 28 villages with a prevalence rate of 97.54 / 100,000. A case of death, mortality was 0.43%. Outbreaks prevalence in 5 villages and 8 villages, the number of cases accounted for 65.53 (154/235) of the total number of cases The survey report is as follows: First, the prevalence characteristics: 1. Comparison of urban and rural incidence: the incidence of urban 190.63 / 100,000 (52 cases ), The incidence rate in rural areas was 85.66 / 100000 (183 cases), the incidence in urban areas was significantly higher than that in rural areas, x ~ 2 = 27.35, P <0.01.2 Time of onset: Since the reported cases in late March,