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目的调查了解一起诺如病毒引起的感染性腹泻暴发疫情的流行病学特点及传播途径,为制定预防控制对策提供依据。方法采用流行病学现场调查、诺如病毒核酸检测以及细菌分离培养常规方法。结果本次疫情共发生病例156例,采集病人的呕吐物2份、排泄物1份、肛拭子5份、饮用水4份、剩余食物10份和食品原料7份,所检标本在5份肛拭子中检出3株诺如病毒GⅠ型。结论确定本次事件是水源性诺如病毒感染性腹泻引起的暴发疫情,及时控制传染源,切断传播途径是控制本次疫情的有力措施。
Objective To investigate the epidemiological characteristics and transmission routes of infectious outbreaks of diarrhea caused by Norovirus and to provide basis for making prevention and control measures. Methods Epidemiological field investigation, Norovirus nucleic acid detection and bacterial isolation and culture of conventional methods. Results A total of 156 cases of this epidemic outbreaks were collected, two patients were collected vomit, fecal 1, anal swab 5, 4 drinking water, the remaining 10 food ingredients and 7 copies of the seized samples in 5 Three strains of norovirus GⅠ were detected in the anal swab. Conclusion It is confirmed that this incident is an outbreak caused by waterborne Norovirus infected diarrhea. It is a powerful measure to control the epidemic in time to control the source of infection and cut off the route of transmission.