1997年1月20日至2月28日平邑县流峪乡发生一起麻疹爆发流行,波及流峪乡的黄土、里石子峪、大窝、二虎崖等4个村庄,累计发病53例,罹患率高达4.2%。其中男24例,女29例,年龄:6月龄2例,～8月龄3例,～1岁4例,～3岁16例,～6岁12例,～9岁7例,～14岁3例,14岁6例,其中年龄最小4月龄,最 From January 20 to February 28, 1997, an outbreak of measles outbreak occurred in Liuyu Township, Pingyi County, affecting 4 villages of Loess, Luli Shiziyu, Taiwo and Erhuya in Liuyu Village, with a cumulative incidence of 53 cases. Attack rate as high as 4.2%. There were 24 males and 29 females with an age of 2 months at 6 months, 3 cases at ~ 8 months, 4 cases at ~ 1 year, 16 cases at ~ 3 years, 12 cases at ~ 6 years, 7 cases at ~ 9 years, ~ 14 cases 3 years old, 14 years old in 6 cases, of which the youngest 4 months old, most