一起学校甲肝暴发疫情的流行病学调查

Epidemiological investigation togerher school outbreak of hepatitis a outbreak

目的分析里高中学甲肝疫情暴发的原因,探讨里高中学甲肝暴发流行的原因、流行特征为预防和控制甲肝的流行提供有效防控措施。方法采用现场个案流行病学调查法,根据患者临床表现及症状体征,采集血样进行甲肝抗体(抗HAV-IgM)及谷丙转氨酶(ALT)测定。结果实验室检测19份血样,抗HAV-IgM阳性19例(100.00%),ALT增高17例(89.47%)。结论本次甲肝群体流行是由于学校备用水源被甲肝病毒污染而引起。提示学校应经常开展爱国卫生教育,改善卫生设施、提供卫生安全饮用水,加强卫生监管,更好地预防传染病的发生。

Objective To analysis the reason for outbreak of Hepatis A in Ligao middle school. Investigate the reason for outbreak and Epidemiological Characteristics to provide prevention and control measures for the prevention and control of the hepatitis A epidemic. Methods Case-investigation and epidemiological investigation on the spot,blood sample were collected for hepatitis A antibody and ALl＂ analysis Results 19 blood samples were detection,19 cases were positive anti-HAV-lgM（ 100.00 %） ,7cases whose ALT were high（89.47 % ） conclusion The outbreak of Hepatis A was caused by the Hepatis A virus polluted backup water source at school. Prompt that the patriotic health education should be developed in the school,improving sanitation and safe drinking water supply ,strengthening the health supervision,to prevent the infectious diseases from happening.