目的:分析一起学校风疹疫情暴发的影响因素,探讨预防风疹疫情的防控措施。方法:通过开展现场流行病学调查和相关实验室检测,应用描述性流行病学方法进行分析,并对所采取的措施进行评价。结果:该起疫情共发现20例风疹病例,罹患率4.89%(20/409),罹患率有随年级增加而降低趋势(x2=11.531,P<0.001),3~6年级314人均未曾接种风疹疫苗,采集20例病例血清进行实验室检测,麻疹Ig M抗体全部阴性,风疹Ig M抗体阳性检出率64.29%(9/14)。结论:该起疫情为一起校内传播的风疹暴发疫情,人群易感性高和疫情报告、处置不及时是此次疫情爆发的主要原因。 Objective: To analyze the influencing factors of a school rubella outbreak and to discuss the prevention and control measures to prevent the outbreak of rubella. Methods: By carrying out on-site epidemiological investigation and related laboratory tests, the method of descriptive epidemiology was used to analyze and evaluate the measures taken. Results: A total of 20 cases of rubella were found in this outbreak. The attack rate was 4.89% (20/409). The attack rate decreased with the increase of grade (x2 = 11.531, P <0.001). There was no measles Vaccines were collected from 20 cases of sera for laboratory testing. All measles IgM antibodies were negative. The positive rate of rubella Ig M antibodies was 64.29% (9/14). Conclusion: The outbreak was a school-based outbreak of rubella outbreak. The crowd’s susceptibility and epidemic situation were reported. The out-of-date treatment was the main reason for the outbreak.