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1999年山东省临沂、枣庄、济宁、泰安市发生麻疹暴发 ,疫情波及 19个县 (市、区 ) ,历时 6个月 ,累计报告发病10 5 1例 ,占全省麻疹病例数的 6 6 10 % ,罹患率为 7 5 1/ 10万 ,死亡 1例。经调查 ,本次麻疹暴发在时间、地理和发病人群关系上具有流行病学意义的联系。发病年龄主要集中在 <15岁 (占 82 0 2 % )儿童 ,<7岁病例占 5 2 6 1%。麻疹疫苗有效接种率低 ,造成易感人群的大量积累 ,是本次暴发的直接原因 ,而疫情报告不及时 ,延误了采取应急预防措施 ,造成了疫情的蔓延
In 1999, an outbreak of measles occurred in Linyi, Zaozhuang, Jining, and Tai’an cities in Shandong Province. The outbreak spread to 19 counties (cities and districts) for a period of 6 months. A total of 105 cases were reported, accounting for 6 6 10 cases of measles %, The attack rate was 751/100000, 1 died. After investigation, the measles outbreak in epidemiological significance of the relationship between time, geography and the incidence of the crowd. The age of onset mainly concentrated in children <15 years old (82.0%), and children aged <7 years old accounted for 52.61%. The effective immunization rate of measles vaccine is low, resulting in a large accumulation of susceptible populations is the direct cause of this outbreak, and the outbreak report is not timely, delay in taking emergency precautions, resulting in the spread of the epidemic