青海省循化撒拉自治县是全国唯一的以撒拉族为主的少数民族自治县，文化、卫生状况较差。在1992年1～5月，该县发生了一起大的麻疹暴发流行，累计报告病例462例，死亡6例，其发病率为457．97／10万，死亡率为5．95／10万，病死率为1．3O％。一、流行情况：从1月上旬发现首例病 Xunhua Salad Autonomous County of Qinghai Province is the only minority autonomous county mainly dominated by the Salars, which has a poor cultural and hygienic status. From January to May 1992, a large outbreak of measles occurred in the county. A total of 462 cases were reported and 6 died, with a morbidity of 457.97 per 100 000 and a death rate of 5.95 per 100 000. Case fatality rate of 1.3O%. First, the prevalence: From the first case found in early January