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目的:查明本次疫情暴发的原因,探讨麻腮风疫苗保护率。方法:使用统一的调查表进行流行病学调查,选择该校发生病例的班级进行回顾性队列研究。结果:永康市某小学发病班级中有免疫史和无免疫史的学生之间发病水平差异有统计学意义(χ2=10.88,P<0.005),疫苗接种是保护性因素RR=0.26,麻腮风疫苗的保护率为73.66%。结论:麻腮风疫苗能够有效预防流腮发生。
Objective: To identify the reasons for the outbreak of this epidemic and explore the protective rate of MMR vaccine. METHODS: The epidemiological survey was conducted using a uniform questionnaire, and a retrospective cohort study was conducted on the classes in which the school was reported. Results: There was a significant difference in the incidence of immunization history and no immunization history in a primary school of Yongkang (χ2 = 10.88, P <0.005). Vaccination was protective factor RR = 0.26. MMR Vaccine protection rate was 73.66%. Conclusion: MMR vaccine can effectively prevent the occurrence of mumps.