本文报告1990年4月盐城市郊区7所农村小学麻疹暴发流行的流行病学调查结果。7所农村小学分布于郊区边远的3个乡镇7个自然村。7个暴发点共发生麻疹病例157人，以20岁以内易感人数计算发病专率，点发病专率为40.0‰。发病时间从1月28日开始至6月30日结束。高峰期位于5月，发病82? This article reports the epidemiological investigation of measles outbreaks in seven rural primary schools in Yancheng suburbs in April 1990. Seven rural primary schools are located in seven villages in three towns and villages that are remote from the suburbs. A total of 157 outbreaks of measles occurred at the seven outbreaks, and the incidence rate was calculated as the number of susceptible persons within 20 years of age. The incidence rate was 40.0 ‰. The onset time from January 28 to June 30 end. The peak is located in May, the incidence of 82?