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目的罗城县是甲型副伤寒老疫区,探讨该县甲型副伤寒暴发流行疫情的流行病学特点和流行原因,为今后防治对策提供科学依据。方法采用现场流行病学调查分析方法。结果本次疫情确诊病例120例,主要分布在县城区3所中学,以内宿生为主,占病例总数的70.83%(85/120),3所中学内宿生罹患率:罗城高中1.83%,罗城中学1.96%,民族中学2.73%;病例集中分布在10~19岁年龄段;此次疫情较为复杂,其中3所学校疫情由自备水和生活接触2种传播途径共同作用引起;由于干预措施得力,疫情迅速扑灭。结论建立科学有效的预防控制技术体系对预防和控制伤寒、副伤寒疫情的暴发有重要意义,开展常规疫情监测,加强对市政供水单位的管理,关注学校的自备水源卫生和饮食卫生管理对防止学校副伤寒的暴发流行十分重要。
Objective Luocheng County is a paratyphoid fever epidemic area, to explore the epidemiological characteristics and epidemic reasons of the outbreak of paratyphology in this county to provide scientific evidence for future prevention and treatment measures. Methods The method of field epidemiological investigation and analysis was used. Results There were 120 confirmed cases in the epidemic, mainly in 3 middle schools in the county area, mainly within the area of the secondary school, accounting for 70.83% (85/120) of the total number of cases. The prevalence rates of the three secondary schools were 1.83% 1.96% in Luocheng Middle School and 2.73% in Middle School. The cases were concentrated in the age range of 10 to 19 years old. The epidemic situation was rather complicated. The epidemic situation in the three schools was caused by the joint action of self-provided water and live contacts. Due to the intervention Effective measures, the epidemic quickly extinguished. Conclusion The establishment of a scientific and effective prevention and control technology system is of great significance in the prevention and control of outbreaks of typhoid fever and paratyphoid fever. It also carries out routine epidemic situation surveillance, strengthens the management of municipal water supply units, pays attention to the prevention and control of self-provided water sanitation and food hygiene management in schools School outbreaks of paratyphoid epidemic is very important.