论文部分内容阅读
目的调查一起学校感染性腹泻暴发的原因,为制定预防控制措施提供科学依据。方法按照感染性腹泻病例诊断标准(WS271-2007)对病例进行诊断,采用流行病学现场调查并结合实验室检测情况进行统计学分析。结果该起疫情累计发病63例,罹患率为6.68%,病例均为学生,首例10月12日发病,末例10月16日发病,发病高峰为10月12-13日;临床表现以腹泻、腹痛、呕吐等胃肠道症状为主;实验室检测示:12份粪便与肛拭子标本中有8份检出诺如病毒。结论根据患者的临床特征、疫情流行特征、实验室检测及卫生学调查结果,确定为一起诺如病毒感染性腹泻暴发疫情;水源被污染,未常规开展饮用水、生活用水消毒和水质监测是导致此次疫情的主要原因。
Objective To investigate the causes of an outbreak of infectious diarrhea in schools and provide a scientific basis for making prevention and control measures. Methods According to the diagnostic criteria of infectious diarrhea cases (WS271-2007), the cases were diagnosed by epidemiological field investigation combined with laboratory testing for statistical analysis. Results The cumulative incidence of the epidemic outbreak in 63 cases, the attack rate was 6.68%, all cases were students, the first case of October 12 onset, the last case of October 16 onset, the peak incidence of October 12-13; clinical manifestations of diarrhea , Abdominal pain, vomiting and other gastrointestinal symptoms mainly laboratory tests showed: 12 samples of fecal and anal swab 8 were detected norovirus. Conclusion According to the clinical characteristics of patients, epidemiological characteristics of epidemics, laboratory tests and health survey results, identified as a Norovirus outbreak of infectious diarrhea; water pollution, unconventional drinking water, domestic water disinfection and water quality monitoring results The main reason for the epidemic.