论文部分内容阅读
目的探讨浙江省宁海县某学校病毒性甲型肝炎暴发疫情的流行特征及流行因素。方法采用现场调查、流行病学个案调查及病例对照研究方法。结果共发病32例,罹患率6.93%;隐性感染59例,感染率12.77%(59/462);病例对照研究结果表明,饮小学教师食堂旁井水是引起此次甲型肝炎暴发的主要危险因素。结论井水受污染是本次甲型肝炎暴发的主要因素,应加强学校的饮用水管理,防止此类事件的发生。
Objective To investigate the prevalence and prevalence of viral hepatitis A outbreak in a school in Ninghai County, Zhejiang Province. Methods The field survey, epidemiological case investigation and case-control study methods were used. Results A total of 32 cases of the disease, the attack rate of 6.93%; 59 cases of latent infection, the infection rate was 12.77% (59/462); case-control study showed that primary school teachers canteen bypass well water is the main cause of the hepatitis A outbreak Risk factors. Conclusion The well water pollution is the main factor of this hepatitis A outbreak. We should strengthen the school’s drinking water management to prevent such incidents.