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本文对1991年上半年间我省方城县麻疹爆发流行进行了流行病学调查分析。此次爆发波及全县16个乡镇,372个行政村,疫情持续6个月之久,发病总数2038人,发病率达218.59/10万,在我省近年麻疹流行史上所罕见。发病年龄最小3月龄,最大60岁,病例多集中在7岁以下,占总发病人数的62.70％。分析本次爆发的原因,接种率低、原发性的免疫失败,疫情处理不够及时等多种复杂的因素而引起的免疫空白区的存在和易感人群的累积增加所致。
In this paper, epidemiology of measles outbreak in Fangcheng County of our province during the first half of 1991 was investigated. The outbreak spread to 16 townships and 372 administrative villages in the county. The epidemic lasted for 6 months, with a total incidence of 2038 people and a rate of 218.59 / 100,000. It is rare in the history of measles epidemics in our province in recent years. The age of onset of the youngest 3 months, maximum 60 years old, the cases are more concentrated in the 7-year-old, accounting for 62.70% of the total number of cases. Analysis of the reasons for the outbreak, vaccination rate is low, the primary immune failure, the outbreak is not enough time and other complex factors caused by the existence of immune blank areas and the cumulative increase in susceptible people.