论文部分内容阅读
本次脊髓灰质炎调查为中国流行病学研究，即穴云南内双版纳景洪县对脑血管病、痴痴、脊髓灰质炎后遗症等疾病调查的一个组成部分。按全省统计划进行，调查时间为1987年5月Ill～9月3111，调查时限利项目为1986年l月～12月31该地区的人11数，患病数、发病数、病死数。1对象和方法
The polio survey is an epidemiological study in China, which is an integral part of the survey of cerebrovascular disease, jerkiness and poliomyelitis sequelae in Jinghong County, Yunnan Province. According to the provincial plan, the investigation time was from May to September 31, 1987, and the time limit for the investigation was from January 1986 to December 31, 1986, and the number of people, the number of illnesses, the number of cases and the number of deaths and illnesses in the area were counted. 1 object and method