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目的了解2012年恩平市某村一起诺如病毒引起的肠炎的流行特点,探讨暴发疫情调查处理的经验,为今后控制类似疫情提供科学依据。方法由疾控中心专业人员用专门的个案调查表对所有病例进行流行病学调查,部分病例采集大便样本进行检测,并结合实验室结果进行流行病学分析。结果本次疫情共有11人发病,罹患率为22.92%;最小1岁,最大62岁,男女性别比为0.83:1,病例的临床表现基本相同,以腹泻、腹痛等胃肠炎症状为主,病情较轻,病例呈一定的家庭聚集性,病程2～4d。检测6例现症病人的肛试样品或粪便样品,发现5份检出诺如病毒核酸阳性,其中1份合并轮状病毒核酸阳性。结论本次疫情是诺如病毒引起的以日常生活接触传播为主的暴发疫情,且部分患者伴有轮状病毒感染。
Objective To understand the epidemiological characteristics of a Norovirus-induced enteritis in a village of Enping in 2012 and to explore the experience of outbreak investigation and treatment so as to provide a scientific basis for controlling similar epidemic situations in the future. Methods The CDC professionals conducted a special case investigation questionnaire for epidemiological investigation of all cases, some cases of stool samples were collected for detection, and combined with laboratory results for epidemiological analysis. Results A total of 11 people were affected by this epidemic, with an attack rate of 22.92%. The minimum age was 1 year and the maximum was 62 years. The sex ratio was 0.83: 1. The clinical manifestations of the cases were basically the same. The main symptoms were gastroenteritis such as diarrhea and abdominal pain, Lesser condition, the case was a certain family aggregation, duration 2 ~ 4d. Six samples of the anus or stool samples from 6 patients were tested and found to be positive for 5 norovirus nucleotides, of which 1 was positive for rotavirus nucleic acid. Conclusion The outbreak was caused by Norovirus in the outbreak of communicable diseases in daily life and some patients were infected with rotavirus.