一起诺如病毒感染性腹泻暴发的调查分析

目的查找一起群体性感染性腹泻暴发的原因，为制定相应的防控措施提供依据。方法采取现场流行病学调查和采集粪便及食物标本进行致病菌检测和诺如病毒检测。结果采集的7份粪便标本诺如病毒检测阳性，均为诺如病毒I型，未检出致病菌，食物标本诺如病毒检测阴性。结论本次事件为食物或餐（炊）具诺如病毒污染所引起的感染性腹泻暴发，加强餐饮业的规范化管理及加强卫生监督监测是预防此类事件发生的重要措施。

Investigation and analysis on a case of infectious diarrhea incident caused by norovirus

Objective To find out causes of a case of group infectious diarrhea, so as to provide scientific basis for formulating prevention and control measures. Methods Fecal samples and food samples were collected and tested for norovirus and intestinal bacteria detection by field epidemiological investigation method. Results 7 fecal samples were found positive in norovirus detection, which were all norovirus I, and no pathogen was found. Food samples were detected as positive of norovirus. Conclusions This infectious diarrhea incident was caused by food or tableware norovirus infection. The effective measures to control the epidemic was to intensify the management of the restaurants and the supervision in advance.