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我省自1955年起就有脊髓灰质炎疫情报告。本文按未实行预防接种阶段、实行预防接种阶段、计划免疫实施阶段分析脊灰疫情的动态情况。1 未实行预防接种阶段(1955～1965年)有4个流行高峰,即1959、1961、1963、1964年,年发病率分别为5.39/10万、5.36/10万、11.31/10万、19.21/10万,年均发病率为4.18/10万。这个阶段的特点是:(1)发生地区不断扩大。1955年只有8个市县有病例,1959年波及39个市县,1963年波及全省的46个市县。(2)有明显的季节性。一年四季均有发生,但7～9月为流行高峰。(3)5岁以下多发。5岁以下儿童占病例总数的94.90%。
Polio epidemic situation has been reported in our province since 1955. This article according to the precautionary inoculation stage, the implementation of vaccination stage, the stage of implementation of planned immunization analysis of the dynamics of the situation of polio. (1) There were 4 epidemic peaks in the period of non-vaccination (1955-1965), namely 1959, 1961, 1963, 1964, the annual incidence was 5.39 / 100000, 5.36 / 100000, 11.31 / 100000, 19.21 / 100,000, with an average annual incidence of 4.18 / 100,000. The characteristics of this stage are: (1) The area of occurrence continues to expand. In 1955, only 8 cities and counties had cases, affecting 19 cities and counties in 1959 and 46 cities and counties in 1963 affecting the whole province. (2) There are obvious seasonal. Occurred throughout the year, but from July to September as the peak of the epidemic. (3) multiple under 5 years old. Children under 5 accounted for 94.90% of the total number of cases.