目的调查1起早教中心内出现多名急性胃肠炎聚集性疫情,分析疫情发生原因,提出防控处置措施。方法按照病例定义开展病例搜索,采用描述性流行病学方法进行分析,样本采用RT-PCR方法进行肠道病毒核酸检测。结果某早教中心2016-05-31/06-01有18例儿童出现呕吐、腹痛症状,其中12例诺如病毒感染疑似病例,6例胃肠炎病例。采集2例疑似病例样以及2名食堂工作人员样,结果为均为诺如病毒阳性。诺如病毒感染9.23%。结论本次为诺如病毒GⅡ型引起的急性胃肠炎暴发疫情,暴发原因可能是由携带病毒的食堂工作人员污染部分食物所致,以食源性传播为主。 Objective To investigate the occurrence of multiple acute gastroenteritis outbreaks in one early childhood education center, analyze the causes of outbreaks, and put forward prevention and control measures. Methods According to the case definition, case searching was conducted and the descriptive epidemiological method was used for the analysis. The samples were detected by RT-PCR for the detection of enterovirus nucleic acid. Results EAR 2016-05-31 / 06-01 There are 18 cases of vomiting and abdominal pain in children, including 12 cases of suspected norovirus infection and 6 cases of gastroenteritis. Two cases of suspected cases and two canteen staff samples were collected and the results were both Norovirus positive. Norovirus infection was 9.23%. Conclusions The outbreak of acute gastroenteritis caused by Norovirus GⅡ may be caused by contamination of part of the food by the staff carrying the virus in the cafeteria, mainly by foodborne transmission.