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目的调查一起幼儿园不明原因发热腹痛事件的病因,采取控制措施。方法开展流行病学调查和病原学检测,对流行特征和流行因素进行分析。结果该起疫情累计发病28例,罹患率19.31%,临床表现以发热、腹痛为主,病例均为轻症,病程2~3 d。检测19份病例样本,17份肠道病毒阳性,4份埃可病毒9型阳性。结论此次埃可病毒9型感染暴发以急性胃肠炎表现为主,不同于以往以无菌性脑膜炎为主,值得关注。
Objective To investigate the causes of unexplained fever with abdominal pain in kindergartens and to take control measures. Methods To carry out epidemiological investigation and pathogen detection, the epidemiological characteristics and epidemiological factors were analyzed. Results The cumulative incidence of the epidemic outbreak in 28 cases, the attack rate of 19.31%, the clinical manifestations of fever, abdominal pain, the cases were mild, duration of 2 ~ 3 d. Nineteen cases were tested, 17 were positive for enterovirus, and 4 were positive for type 9 echovirus. Conclusions The outbreak of E 9 virus infection is mainly characterized by acute gastroenteritis, which is different from the previous case of aseptic meningitis.