某教育培训机构发生诺如病毒感染暴发的调查  

Investigation of an outbreak of norovirus infection in an educational training institution

作　　者：蔡丹丹[1] 宋学敏 朱伟光[1] CAI Dan-dan;SONG Xue-min;ZHU Wei-guang(Suqian Center for Disease Control and Prevention,Suqian 223800,Jiangsu,China)

机构地区：[1]江苏省宿迁市疾病预防控制中心,江苏宿迁223800

出　　处：《中国校医》2022年第8期594-595,608,共3页Chinese Journal of School Doctor

摘　　要：目的 分析一起发生在教育培训机构内、以胃肠道症状为主的暴发疫情,提出预防控制措施,评估处置效果。方法 按照病例定义进行病例搜索和个案调查,采用描述性流行病学方法进行分析,采集部分学生、教师、厨师的肛拭子样本及食物、环境样本进行病原学检测。结果 该教育培训机构共发现病例19例,均为学生,罹患率为63.33%(19/30),流行曲线呈现点源暴露模式,同一场所内不同机构发病差异有统计学意义(χ^(2)=91.11,P<0.010),19名不同性别学生发病差异无统计学意义(χ^(2)=0.146,P=0.702),22份标本中6份为诺如病毒GⅡ型核酸检测阳性。结论 这是一起由诺如病毒导致的以腹泻、呕吐症状为主的培训机构暴发疫情。Objective To analyze an outbreak of gastrointestinal symptoms among students in an education and training institution,put forward preventive and control measures,and evaluate the treatment effect.Methods Case search and case investigation were carried out according to the definition of cases.Descriptive epidemiological methods were used for analysis.Anal swabs,food and environmental samples from some students,teachers,and chefs were collected for pathogen detection.Results A total of 19 cases were found in the education and training institution,all of them were students,and the incidence rate was 63.33%(19/30).The epidemic curve showed a point source exposure pattern.The incidence rates of different institutions in the same place were statistically significant(χ^(2)= 91.11,P < 0.010),and the incidence rates of 19students of different sexes were not statistically significant(χ^(2)= 0.146,P = 0.702).Norovirus GⅡ nucleic acid was detected in 6 of 22 samples.Conclusion This is an epidemic outbreak of diarrhea and vomiting caused by norovirus.

关 键 词：诺如病毒 暴发疫情 急性胃肠炎 接触传播 

分 类 号：R183.7[医药卫生—流行病学]