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目的探索札如病毒所致幼托儿童急性胃肠炎爆发疫情的特点。方法对2起札如病毒所致幼托儿童急性胃肠炎爆发疫情进行现场流行病学调查,对采集的样品进行细菌性和病毒性检测,对5例阳性病例的排毒期进行追踪。结果 2起爆发疫情病原为札如病毒,共23人发病,班级内罹患率分别为36.67%和30.77%,临床表现以呕吐和腹痛症状为主,分别占发病人数的100%和69.6%,病例排毒期6~13 d,中位数为9 d。结论札如病毒在托幼机构等儿童聚集的场所极易引起爆发疫情,应引起重视。
Objective To investigate the characteristics of acute outbreak of gastroenteritis caused by Sapporo virus in children. Methods Two outbreaks of acute gastroenteritis caused by Zha-Vu virus were investigated by field epidemiology. The collected samples were tested for bacterial and viral activity and the detoxification period of 5 positive cases was followed up. Results The outbreaks of two outbreaks were Zha-Ru virus. A total of 23 patients were affected. The intra-class attack rates were 36.67% and 30.77% respectively. The main clinical manifestations were vomiting and abdominal pain symptoms, accounting for 100% and 69.6% of the cases respectively. Detoxification period 6 ~ 13 d, the median was 9 d. Conclusions Sapporo virus can easily cause outbreak in places where children gather in kindergartens and nurseries, which should be paid more attention.