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目的对哈尔滨市道里区一起诺如病毒感染引起的暴发疫情进行特征分析,分析疫情的主要原因,为今后防治感染性腹泻暴发流行提供科学依据。方法采用确定病例定义、开展病例搜索,应用描述性分析方法进行现场调查。采集病例及相关人员标本,Real-time PCR方法检测腹泻病毒。结果此次疫情共报告病例34例,罹患率为6.8%,病例肛拭子样本10份,诺如病毒7份为阳性,均为GⅡ型诺如病毒。病例主要症状为恶心、呕吐、腹痛、腹泻。结论学校是诺如病毒防控的重点场所,应加强监测,做食品安全管理工作,控制好传染源,要做早发现、早报告、早管理。
Objective To analyze the characteristics of an outbreak caused by norovirus infection in Daoli District of Harbin and analyze the main causes of the outbreak and provide a scientific basis for future prevention and control of the outbreak of infectious diarrhea. The method used to determine the definition of cases, to carry out case searches, the use of descriptive analysis methods for field investigation. Collect samples of patients and related personnel, Real-time PCR method to detect diarrhea virus. Results A total of 34 cases were reported in this epidemic, with an attack rate of 6.8%, 10 cases of rectal swab samples and 7 Norovirus, all positive for GⅡ Norovirus. The main symptoms of the case were nausea, vomiting, abdominal pain and diarrhea. Conclusions The school is the key area of Norovirus prevention and control. Schools should strengthen their monitoring and food safety management and control the sources of infection. Early detection, early reporting and early management should be done.