目的　探讨一起麻疹暴发流行的流行病学特征及意义。　方法　对流行期间发生的 30 7例患者进行流行病学分析。　结果　 30 7例中 1岁内婴幼儿 95例 (30 .94 % ) ,其中少于 6个月 35例 (11.4 % ) ;1～ 8岁 75例 (2 4 .4 % ) ;9～ 15岁 34例 (11.1% ) ;15岁以上 82例 (2 6 .7% )。 10 5例接种过 1次麻疹疫苗 ,1例接种过 2次。死亡 3例。　结果　麻疹暴发流行与易感人群增多及免疫力下降有关 ;应重视婴幼儿麻疹及强化免疫 Objective To explore the epidemiological characteristics and significance of a measles outbreak. Methods An epidemiological analysis of 307 patients during the epidemic was conducted. Results A total of 95 cases (30.94%) of infants in 1 year were diagnosed in 307 cases, of which 35 cases (11.4%) were less than 6 months, 75 cases (2-4.4%) were from 1 to 8 years and 9 to 15 years 34 cases (11.1%) and 82 cases (26.7%) over 15 years old. One hundred five vaccinated measles vaccines and one vaccination twice. 3 died. Results The outbreak of measles was associated with the increase of susceptible population and the decrease of immunity. The importance of infant measles and intensive immunization