目的了解甘肃省麻疹发病状况。方法对2003年麻疹监测数据进行了流行病学分析。结果2003年共报告麻疹疑似病例1631例,确诊1612例,发病率6·24/10万。麻疹发病呈散发和爆发并存的模式,爆发病例占总发病数的34·18%。麻疹发病以≤15岁儿童为主。在确诊病例中有麻疹疫苗(MV)免疫史者占55·09%,无免疫史者占10·85%,免疫史不详者占34·06%。发病主要原因是部分地区MV常规免疫未落实,爆发疫情不能及时报告、检测。结论应在加强MV初免和复种的同时,在重点地区适时开展强化免疫,同时提高接种质量,要加强基层疫情报告;建立麻疹实验室网络,提高麻疹IgM抗体检测率。 Objective To understand the incidence of measles in Gansu Province. Methods The epidemiological analysis of measles surveillance data in 2003 was conducted. Results A total of 1631 suspected measles cases were reported in 2003, of which 1612 were diagnosed with a prevalence of 6.24 / 100,000. The incidence of measles was a pattern of exudes and outbreaks, accounting for 34.18% of the total number of outbreaks. Measles incidence ≤ 15-year-old children. Among the confirmed cases, there were 55.09% of patients with measles vaccine immunization history, 10.85% of those without immunization history and 34.06% of patients with unknown history of immunization. The main reason is the incidence of MV conventional immunization in some areas not implemented, outbreaks can not be reported in time, testing. Conclusion It is necessary to strengthen the prime immunization and multiple cropping of MV while strengthening immunization in key areas in a timely manner, while improving the quality of vaccination, to strengthen the reporting of grass-roots epidemic situation; establishment of measles laboratory network to improve measles IgM antibody detection rate.