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自从脊髓灰质炎疫苗问世以来,该病在我县发生了很大的变化。本文就我县27年来脊髓灰质炎流行病学作一粗浅的分析。 (一) 全县自1956年国家将本病列入法定传染病报告后方有记载。经统计1956一1982的27年间,平均年发病率为5.39/十万,病死率为0.28肠。详见表1. 在有病例发生的17个年度里,按其发病及流行强度可分为三类: 一、大流行:1965年,为高峰年,其发病强度大,波及范围广,属全县性的大面积流行。当年发生599例,占27年发
The disease has changed a lot in my county since the advent of poliomyelitis vaccine. In this paper, I County 27 years of polio epidemiology to make a superficial analysis. (A) The county since 1956, the state will be included in the report of the legal infectious diseases recorded after the record. In the 27 years from 1956 to 1982, the average annual incidence was 5.39 per 100,000 and the case fatality rate was 0.28. For details, please refer to Table 1. In the 17 years in which cases occur, the incidence and epidemic intensity can be divided into three categories according to their incidence and epidemic intensity: 1. Pandemic: In 1965, it was a peak year and its onset intensity was large and covered a wide range County-wide pop. 599 cases occurred that year, accounting for 27 years of hair